No Injector Pulse Or Spark

3 V6 EFI won't start no injector pulse June 3rd, 2013, 12:38 PM. Manually tested pump, both speed sensors, maf etc & all test within acceptable ranges. I went through the wire job on the new module and found out he had the crank signal and ground wires backwards. Still can't start the Dodge. I banged my head against the wall for a while, then started poking around. 0L Tech > 1992 mustang no injector pulse Reply. Troubleshooting a No Start, No Spark, No Fuel, No Com (any car) - Duration: 52:08. The spark problem was the module being miswired by the person who worked on my car. btw its a 96 vr gti ant help is greatly appreciated. I'm just looking for confirmation, or if there's anything I missed. Hi guys I have a ve ss and have no injector pulse. RB25DET - No Injector Pulse. 94 yj no spark, no start: 97mrnsgt: YJ Wrangler Technical Forum: 15: 05-23-2014 05:04 PM: help! no injector pulse, no current to injector: kirkland1625: YJ Wrangler Technical Forum: 3: 02-25-2012 07:10 PM: No spark on start, one spark on run. Checked for spark. Engine won't start (new rebuild), it has spark (new opti and coil) but I do not think the injectors are firing. I am trying to do the first start on the car 302 with a Mass Flo. How to Test Fuel Injectors. The owner switched the ignition module over to tbe 86-87 module. no codes set. Engine cranks fine and fuel pump runs. 91 Chevy 305 tbi no spark no injector pulse My truck was going down the road and just died on mei cranked it over a few times it fired and drove for about 400 yards and died again. I pulled the old 4. Have spark but no injector pulse. All grounds are clean and tight, the CKPS and TDC sensor ohm at 2. Verified good fuel pressure at the rail, verified spark. btw its a 96 quattro AAH engine, help is greatly appreciated. So I mounted the ECU and Ing mod and now I have no Injector pulse at the Injector plug with a noid light. 5L the Engine crank over OK, but there is no injector pulse and no spark. i have fuel pressure at the rail and my fuel pump primes. 3 Vortec, no injector signal. Removed the UTEC still no start. As I mentioned I checked the trigger points and they appear to open and close that part of the circuit. If the spark is clean and matching engine rpm but the injectors are not then check the signal from the Throttle Position Sensor (TPS). Is the ECU Bad? If this is your first visit, be sure to check out the FAQ by clicking the link above. Number 6 fuel injector is not getting any power to it. There was no fuel injector pulse. For low-impedance injectors (less than 3 Ohms), you need to limit the current to avoid overheating the injectors. 0l it was ment to be running turns out when she got there the battery was flat, the keys in the ignition the guy tried to jump start it when he put on the jumper cables the doors locked with the keys in the ignition, after thay smashed the window to get in the car wouldnt start, i had a look over it and there is no spark and no injector pulse the fuel pump is working. No fuel injector pulses from the fuel injector connectors as tested using a Noid Light. This is in my 69 Camaro with AAW Classic Update harness. Joined Feb 28, 2010 · 17 Posts. No spark, no fuel. Discussion Starter. What am I doing wrong? Bled all 4 corners with no. I check the following items, crank sensor, cam sensor and wiring, I also check all the power input and grounds going to the ECU fuses all check OK. I have a cam code even after swapping with a good sensor, I have not compleatly tested the ground wire going to the PCM but I was thinking maby the cAmshaft sprocket is different due to the crank sprocket. Hello to all I need help! I have 2005 nissan maxima SE 3. after 2 or 3 seconds as it did before. No Injector pulse Sign in to follow this. Joined Dec 26, 2013 · 108 Posts. Fuel pump is definitely running. ( if it shows no pulses cranking , then the ECU is bad or the ECU thinks there is no spark or the TPS is signaling WOT , full time). Select one of the tester's modes by pressing the MODE SET button, the mode No. Discussion Starter • #1 • Apr 27, 2017. Joined Jun 19, 2006 · 3,923 Posts. Experienced tech stumped: turns over but won't start; no injector pulse. Jump to Latest Follow 1 - 2 of 2 Posts. Silverado & Fullsize Pick-ups - 1993 C1500 5. 1 answer & 0 cluster flash when you crank the engine? If so, you have an key based anti theft system issue. I have no injector pulse and truck will not start. So is the ecm bad or the crank sensors bad. 0t TSI OEM Fuel Injector. There is battery voltage at both terminals at each of the red and blue wires on each injector to earth and the noid light shows nothing when cranking. 2 No spark, injector pulse won't run. I first replaced the distributor because they were known to go bad, I checked and I thought it was bad but I was wrong. Another way to test the injector is to measure the resistance of every injector between the two terminals and compare it with the highest and lowest values stated in the injector datasheet; if the result outside the allowable boundaries, then change this injector. No spark, no fuel. No spark means no pulse. No fuel injector pulse I have a 90 SC 5sp The harmonic balancer broke so I pulled the engine to fix that and multiple other small issues. The fuel injector can be compared to the heartthe injector does the pumping. 90tsi6bolt tried to restart it and it will not restart now, used a spare plug and confirmed it has spark, pulled a plug from the engine its completely dry, no fuel, fuel press on the fpr is over 40 psi, checked power on pin 3 at the resistor pack. nothingleft09. any:confused. I have spark ,i have fuel pressure I have power to injectors but no pulsecould it be a fues causing this?? Joeyxxx , May 10, 2020 at 1:25 PM. -----Will not flash codes. Will run with fuel added to the intake but wont run on its own. This is an issue with a '95 LT1. Does the ICM control both and could it be bad even though it tested good? I'm at a total loss at this time. No Injector Pulse, But Gets Spark ('01-'02) Jump to Latest Follow 1 - 7 of 7 Posts Narrowed it down to no injector pulse. I did find this link. Checking the car out it has no spark on the plugs or the coil. Tested injectors with a test light, comfirmed no pulse at injectors. i hope this is in the right area, i need some advice. Did some more testing, I'm not getting spark at the plugs either. 9L Distributor ignition, multi-port injectors 2 fuel pumps (pre-pump in tank, main in frame, both are new) New ignition module (2nd new one) Car runs for 30 - 58 seconds and then looses computer pulse to injectors, does not lose ignition spark or fuel pressure Any ideas what is causing the loss of computer pulse? Additional details. At idle the injector pulse width of a GDI injector is about _____. 0 Mustang Tech: 5: Jun 24, 2007: C: no spark/injector pulsing: 1994 - 1995 Specific Tech: 8: Mar 22, 2007. A short in the dash powerside wiring (the small orange/black wire) caused a no start problem The dash light wiring has been repaired Symptoms: No spark from coil No injector pulse Fuel pump primes but not running during cranking Intermittent Voltage gauge operation Tachometer not working Diagnostics:. The shop found the ignition key body was broken and NATS (Nissan Anti-Theft System) immobilizer codes P1610 and P1614. The injectors have a constant 12v signal while the key is in run or the engine running. No Injector pulse. I due have spark though and fuel pressure also I can make it run on carb clean spray and also the other. If I spay gas into intake, car will run all day. Have helper crank the engine to see if the nylon fuel line sprays fuel. Fire at the plugs or the injectors and the fuel pump would run all the time, I replaced the motor with another that came out of the same year model and replaced every sensor from that car to mine, even the ECM, tried to start and it will not, still no fire at the injectors and fuel pump is still running, if any one can help please, I need it. Car: 1996 Eagle Talon Esi with stock 420A, no modifications, 5 spd. There was no fuel injector pulse. Spark then means the crank signal is working and most likely it would be the injector drivers (pcm) or pcm grounds. 2002-01-01. runs on 2 cylinders Getta scan done--may hav some wiring issues too--sensors-or injector driver in computer cud be bad----its almost 20yrs. 0 OHV (pushrod) V6 - Engine won't start - has no spark, and I'm 99% sure it's a bad ECM. Spark would occur then stop, (intermittent spark). 1997 E320 no fuel injector pulse after front end collision. 10-25-2004, 12:01 AM. 0L Turbo Powertrain (EJ Series Factory 2. My friend has my hp tuners, so I won't be able to scan it until tomorrow. All grounds are clean and tight, the CKPS and TDC sensor ohm at 2. Frequently Asked Questions, How To's, & Part Numbers. If still no injector pulse, then the. How to test for proper fuel injector control and how to test fuel pressure and the fuel pump electrical system. When the truck sits for some time, it will start for about half a second and then quit because the injectors are not pulsing. I have checked the. Nothing new to me most common problem was ignition control module. Any thoughts? BB. Fuel injectors inoperative, one or more injectors either on all the time or will not squirt. I really appreciate the thought and insight you have given to this problem. Working on a Ford Probe GT. It started acting up while driving it, seemed like the engine would totally cut out, rpm gauge would. 7, I have good fuel pressure and good spark but I am only getting 0. To do this, there is a period of time that you apply full battery voltage [peak] current, then switch over to a lower. Fire at the plugs or the injectors and the fuel pump would run all the time, I replaced the motor with another that came out of the same year model and replaced every sensor from that car to mine, even the ECM, tried to start and it will not, still no fire at the injectors and fuel pump is still running, if any one can help please, I need it. Any ideas on what to try next? Im lost! Thanks in advance. As my title says my 89 m20b20 DME bosche 0261200,172 does not have injection pulse after an engine rebuild, tested pretty much everything and I am on my wits end. i know the older gm's like this the module controlled spark and fuel. No start troubleshooting (fuel pressure, injector pulse, spark) - GM OBDI YouTube Free Menu (Chapter 1) Misfire ID, Compression Test, Vacuum Leaks, Fuel Trim, Head Gasket, Restricted Exhaust, Low Power, DVOM. Joined Nov 23, 2010 · 40 Posts. Module is in good. Jump to Latest Follow 1 - 4 of 4 Posts. NRMA guy told me it was probably the crank angle sensor so I replaced it but still no start. All of a sudden i loose all power, lights and everything are on but the engine dies. Discussion Starter • #1 • Aug 13, 2013. anyone ever run into this before or suggestions. I have spark, I have fuel pressure, I have compression, I have power to the injectors. Re: no spark no injector pulse Don, i checked with a noid light and there is fuel pressure. I pulled the old 4. 1 of 2 Go to page. 2006 Nissan Murano awd. i am running aem ems and i already calibrated it and has a base map on it. No injector pulse?! Please help! JordanHoudek: Factory 2. A few weeks ago I posted about my problem with injector pulse. 08-20-2010, 01:14 PM. I believe the Ecu is not getting the signal to ground each injector. 91 Chevy 305 tbi no spark no injector pulse My truck was going down the road and just died on mei cranked it over a few times it fired and drove for about 400 yards and died again. Discussion Starter • #1 • Oct 19, 2014. This is the plan. Jump to Latest Follow 1 - 4 of 4 Posts. its getting fuel to the throttle body,has spark,will start and run for few seconds on starting fluid. It always cranks but not start when cold. If the ECU shows no change in the MAP voltage while cranking it won't pulse the injectors. Joined Apr 24, 2017 · 7 Posts. Checked for injector pulse and I've got nothing. It's a late model 302 Windsor, running a Edelbrock Air-Gap intake manifold. The sensor in the distributor is the camshaft position sensor and it has nothing to do with fuel injector pulse width, or ignition spark. no spark or injector pulse. Top 1991 olds 98 no injector pulse Help! Posted: Thu Dec 09, 2010. 5K and the ohms jump as the engine is turned. 0 and im getting no injector pulse. right now please help. There's fuel, spark and 12v at the injectors. The new wiring diagram should really help. Any suggestions? Thanks! 05-09-2010, 03:10 PM #2: RP80242GT+T. injector fuse is good. This means that the ability to write new posts and access various member features will go away. TJ no injector pulse. I'm just wondering if anybody has encountered this. Our professionals are here to help make sure you find the answers you need to your questions and our community is here to help other brainstorm. Similar Threads - injector pulse spark Forum Date; No spark or injector pulse: 4th Gen Camaro LT1 (1993-1997 Camaro) Aug 26, 2007: Injector pulse width: 4th Gen Camaro LT1 (1993-1997 Camaro) Jun 17, 2017: Planning on doing the LT4 hot cam and have a injector question: 4th Gen Camaro LT1 (1993-1997 Camaro) Dec 3, 2017. A DSO or Oscilloscope excels at injector testing, I will not elaborate here on that topic but , it can find sluggish injectors, and many other weaknesses. If the sensor is bad then the injectors won't turn on and there will be no spark. Now my fuel pump works but still no spark + injectors are not pumping fuel but fuel pump works perfect and there is power to the diz and injectors so i checked the coil its fine. It simulates the pressure in the combustion chamber. I have power to computer and I also changed my computer. just want to know how this is supposed to work. Remove one and only one fuel injector nylon tube from it's place on the intake manifold. Had same problem before fuel pump was replaced) checked all grounds, checked fuses, relays, fuel pressure, spark finally no injector pulse didn't have voltage to injectors with koeo. 5K and the ohms jump as the engine is turned. ? Just a thought. Engine rolls over. 90tsi6bolt tried to restart it and it will not restart now, used a spare plug and confirmed it has spark, pulled a plug from the engine its completely dry, no fuel, fuel press on the fpr is over 40 psi, checked power on pin 3 at the resistor pack. also check sensor ground and ECU ground. help 84 gn no spark injector pulse. What am I doing wrong? Bled all 4 corners with no. There are two sensors you need to look at, the crank sensor, and the cam sensor, they both need to be working for the ECM to initialize injector pulse. So I went in and tested the pins directly at the ecu by probing The injector output pins 51,52,60, and 61. 75 volts to trigger the TFI module. The car now has neither spark or injector pulse now. If the spark is erratic you need to look closely at the crankshaft position sensor. You can use a noid light to see if your getting a pulse. Check to see if there is a code stored, either one failed will set a code. Alright, I'm new to this forum but not a rookie to vehicles. 4 ms Technician A says that the cylinder head and piston design of a GDI engine is the same as in a port injected engine. Now on the way home, the first time in a long time, the car had no problems reving over 5K. P0336: Inconsistent Crank Sensor Signal Detected. 0 bar boost, and better low-end driveability. I have limited data on Mercedes as I am using Mitchell Which has been of very little help. problem now, tried to start nothing cranks ok, no start , good fuel pressure , good spark. I have a 1992 Mazda 323 SE. No spark from all of the Coil-On-Plug Ignition Coils. Start the car. So I know it's got spark and good pressure on the rail. Just trying to throw all information out there in case someone may have an answer. Checked for injector pulse and I've got nothing. On my 97 Deville the display is showing Theft System/car may not restart. Still wont start. 1 ltr, No Spark, No Injector Pulse 2 Answers. Car will run if spray fuel into intake. 2002 nissan sentra 1. Has spark - Insure wire continuity between the ECM and the distributor or tach Filter. Spark on some spark plugs can be caused by faulty ignition coil, spark plug wires or the plugs themselves. tested with a noid light. I have spark ,i have fuel pressure I have power to injectors but no pulsecould it be a fues causing this?? Joeyxxx , May 10, 2020 at 1:25 PM. 28 people found this helpful. I have 40 pounds of fuel pressure at the injector rails. Any suggestions? Thanks! 05-09-2010, 03:10 PM #2: RP80242GT+T. The high voltage from the coil's secondary (typically 20,000 to 50,000 volts) causes a spark to form across the gap of the spark plug that in turn ignites the compressed air-fuel mixture within the engine. (1/1000 of a second) They are in the intake manifold near each cylinder head. Truck HAS fuel Presure (50 psi) it HAS spark. Post subject: Re: 1991 olds 98 no injector. With a bad crank sensor, you will still get spark, but it wont be sparking at the correct time or the correct cylinder. I had spark. In relation to your no injector pulse problem, check the wiring harness from the distributor to the ECM. Have you checked to make sure the security system isn't preventing it from starting? If not, the cam and crank sensor needs to correlate in order to have injector pulse and spark, so I would start by probing the cam sensor to check for AC current while cranking if there is current ohm the wires to the ecm, if the ohm reading is less than 1 ohm it sounds like a computer problem. One of the guys that i meet, he told me that might be a distributor problem. 9L Distributor ignition, multi-port injectors 2 fuel pumps (pre-pump in tank, main in frame, both are new) New ignition module (2nd new one) Car runs for 30 - 58 seconds and then looses computer pulse to injectors, does not lose ignition spark or fuel pressure Any ideas what is causing the loss of computer pulse? Additional details. I have no injector pulse. i replaced cranks sensor, ignition module, computer, an the coil assemblies. I believe the Ecu is not getting the signal to ground each injector. This is an issue with a '95 LT1. They found out I not only had no spark but no injector pulse either. Once the faults were confirmed I connected my scan tool. Checked all the basics, but it has no spark, and no pulses at the injectors. Fixed that and still nothing. Discussion Starter • #1 • Feb 10, 2017. Have helper crank the engine to see if the nylon fuel line sprays fuel. rpg5553: Built Motor Discussion: 0: 10-22-2010 09:18 AM: No spark, No. Spark, compression, fuel - no injectors pulse. Wait a minute on the ground side of the injector I get no light at all. Main relay can also cause no spark. It decided to die in a parking lot after being shut off. has msd blaster coil, getting plenty of spark of the plug. No Start, Engine Cranks Okay, Troubleshooting With Basic Tools (No Power to Injectors) - Duration: 32:25. There is no fuel output while cranking. help - no spark, no injector pulse, no run I'm working on a 2001 Ram 2500 5. "take a test light. Working on a Ford Probe GT. i replced ecm with remanufacter unit same thing. TFI Module is the ignition control module. if have spark trouble shoot injection. _____ 2006 Chevy Monte Carlo SS. Ran fine for 2 days and multipul starts and drives. Hi guys I have a ve ss and have no injector pulse. Please help! Every possible part I could test passed just wondering if it is an ECM problem? SPONSORED LINKS. Similar Threads - injector pulse spark Forum Date; No spark or injector pulse: 4th Gen Camaro LT1 (1993-1997 Camaro) Aug 26, 2007: Injector pulse width: 4th Gen Camaro LT1 (1993-1997 Camaro) Jun 17, 2017: Planning on doing the LT4 hot cam and have a injector question: 4th Gen Camaro LT1 (1993-1997 Camaro) Dec 3, 2017. The engine is an L67 rebuilt from the ground up, but originally came from a 98 Buick Park Avenue Ultra. By Quick Strike in forum 2003 - 2004 SVT Mustang Cobra Replies: 2. 2006 Nissan Murano awd. Fuel pump is providing good pressure. ) PIP sensor in distributor. Will run with fuel added to the intake but wont run on its own. It has spark but no injector pulse, it's getting voltage to the injector connector but the PCM is not grounding the injector for the pulse. It did not seem to want to fire if I used starting fluid eithe. There is no ignition signal and the injectors are not firing. Checked all grounds and they also look good. Sign in to reply. my truck stopped running at home (luckily) right while I was putting it into park. Plenty of spark under crank position. Solution - Check for faulty EFI control relay. ohh, Jun 24, 2010. If the spark is erratic you need to look closely at the crankshaft position sensor. The shop found the ignition key body was broken and NATS (Nissan Anti-Theft System) immobilizer codes P1610 and P1614. There is still a steady light on both wires. The engine will run if I spray starter fluid into the throttle openings and then crank it. Have helper crank the engine to see if the nylon fuel line sprays fuel. Engine cranks fine and fuel pump runs. Trying to fire up an engine, have no spark or fuel. STravis · Registered. Recently installed a new power steering pump and also new brake hydroboost. Jump to Latest Follow 1 - 2 of 2 Posts. btw its a 96 vr gti ant help is greatly appreciated. AwdBoostCreep: Factory 2. I check the following items, crank sensor, cam sensor and wiring, I also check all the power input and grounds going to the ECU fuses all check OK. I used the following for my three wire hookup to the engine harness from the AAW accessories connector: dark blue fuel to gray fuel power feed on harness, orange BAT1 to orange constant power, and pink IGN1 to pink ignition on harness( this also says. My ground also is good. the car ran with the stock motor so it has to be something i did during the swap. Also pulled a plug and no fuel on it however I do have fuel pressure. It has no brain and only responds based upon ECU input. Now just to get you guys up to speed so I'm not answering a heap of question lol I don't have a DDT,love to get one but nothing. Hi guys I have a ve ss and have no injector pulse. December 29, 2010. I've had the same problem for a while now. Typically the signal across the fuel injectors are monitored by a scope (train of pulses). I have a 1990 F350 crew cab that I recently bought cheap needing a transmission. Maybe they arent spraying. 1 988 ford tempo will not start has fuel pressure an spark ,injector pulse but no fuel in cylinder. Plenty of spark under crank position. There is still a steady light on both wires. It seems that lack of spark inhibits the injector pulses and the fuel pump. All the injectors are ticking perfectly fine. no spark, but have injector pulse - Check the Ignition Module (also check the CCCI and ECM-IGN fuses). A failing TPS can trigger the computer’s program to activate what is called the clear flood mode. 28 people found this helpful. Replaced distributor five months ago. Great thanks. Replaced Dist, igniter and ecm with known good units. 1997 - 2003 F150 - No spark, no injector pulse! What's up? - Hi Everyone, I've got a 2001 4. Joined Jun 26, 2005. I've tried everything I know to do and no injector pulse. Which means that the injectors are not getting fuel to the plugs. Beretta, Corsica, & pre-1995 Lumina - 92 chevy lumina euro has spark no injector pulse - Was called today to look at a car that wont start its a 92 chevy lumina euro with the 3. Then, with key ON, throttle at idle position, the injectors would spray like the throttle was at wide open. Verified good fuel pressure at the rail, verified spark. No injector pulse Discussion in 'Engine & Performance' started by Snackcake 01, Aug 6, 2017. I have a 2002 Boxster that has no fuel or injector pulse. Sorry for my english! Save Share. Yeah this thing will crank all day but no spark/inj pulse. Using a Fuel Injector Pulse Tester is the safest way to see if the entire assembly is bad on the CPI ‘Spider’ system (this is because this assembly only has one fuel injector solenoid inside). ECM check fine. But those damned fuel injectors just won't open on their own. Solution - Check for faulty EFI control relay. Sounds like you checked everything and it HAS injector pulse. 6 How to test a VR type crank sensor. 7 in the Corvette and Camaro. ScannerDanner 261,418 views. Just got the motor in and ready to fire but it has no spark or injector pulse. Rundown of failure: Was hard to start on occasion, with 20 seconds of cranking and then finally started. I have a 1990 Eagle Talon Tsi having issues with injectors. We replaced the ignition module in the distributor, but had no spark still. Replaced distributor five months ago. It has no injector pulse , but does have spark , although I guess it may be firing at the wrong time , coz the introduction of aerostart {ether} does nothing. 3 lhas no injector pulse and a security light on. Chevrolet k1500 getting spark to all plugs, gas to TBI, continuity from ECM to injectors, but no pulse to injectors. no spark and no pulse to injectors maintenance & nonperformance. Replaced Dist, igniter and ecm with known good units. ANd i take the injector out and test it, It spark fuel. Fuel pump is working, it's got spark, but no injector pulse. My son drove the car to school with no problem and after class he could not get the engine started. I discovered that I only had spark on 3 cylinders. It simulates the pressure in the combustion chamber. Here's what I know. Bought a 1989 prelude that wasnt starting narrowed it down to getting no fuel which turned out to be the main relay resoldered the relay thanks to good write up on here and got fuel pump going and car started up had it idking for good ten minutes but when I moved it it just died out again and wouldn start its getting fuel to injectors and a spark but its not getting a ground pulse to injectors its just getting a 12v source with ignition on I was wondering if it could have anything to do with. 3 and put a 5. It will crank but no start. tried new ecm, no luck grounded the ecm directly to the battery thinking it was voltage drop. The vehicle was towed to the shop (obviously) and had no injector pulse. ) It also has no injector pulse at the injectors. So, low compression or an ignition problem should be eliminated before looking for a possible clogged fuel injector. But we've got no spark and no fuel on the spark plugs. TDC is sensed and correlated by a C a M shaft P osition sensor set into the right (rear) cam cover front face - it gets a pulse from a raised bump on the right. 2006 Ford F150 4X4 5. Ive already put a new cam sensor on and swapped with a running ecu/key from my RXT. Tach is not registering. the Main EFI Relay is good. Chances are there is no or weak spark. So is the ecm bad or the crank sensors bad. Any suggestions? Thanks! 05-09-2010, 03:10 PM #2: RP80242GT+T. Hi guys I have a ve ss and have no injector pulse. I have spark ,i have fuel pressure I have power to injectors but no pulsecould it be a fues causing this?? Joeyxxx , May 10, 2020 at 1:25 PM. What am I doing wrong? Bled all 4 corners with no. Ive got a fully charged battery and a jumper on it, it just cranks and cranks. You may have to remove the spark plugs to let them. 0L Turbo Powertrain (EJ Series Factory 2. But stop once you stop. When I push switch, injectors spray like crazy. no codes set. If you use the key, there is no injector pulse while cranking. If the engine is getting spark, that is triggered by the Hall Effect sensor so you should get fuel pulses as well. Fuel injectors inoperative, one or more injectors either on all the time or will not squirt. The first time I ran into one of these, I mistakenly replaced the engine computer in an attempt to fix the no injector pulse condition. It will have to be relearened at a dealership. Which means that the injectors are not getting fuel to the plugs. Hi guys I have a ve ss and have no injector pulse. Tested pulse with Noid Light. injector fuse is good. Replaced ignition because I knew the wires in it were bad and is fine now. Background: '87 Ford Bronco II, 4x4, 4WD, not extended cab, 2. Engine won't start (new rebuild), it has spark (new opti and coil) but I do not think the injectors are firing. Damaged resistors would likely come from trying to drive coil primary directly with non-direct drive coil outputs - this is a fairly common mistake that new users make. If I spay gas into intake, car will run all day. As I turn the distributor by hand the trigger points activate the fuel pump so I know that much is working. Already check the inertia switch for the hell of it to. So i'm just trying to star my sr, the engine crank, the fuel pump work, but got no spark and ingector pulse The ecu send me a code 11 ( CAS) when i try to start the engine but i chek the my wiring many times and chek the CAS as its tell in the FSM and every things ok, grouns are all ok too. I picked it up from a salvage yard in Wisconsin. 0 Mustang Tech: 5: Jun 24, 2007: C: no spark/injector pulsing: 1994 - 1995 Specific Tech: 8: Mar 22, 2007. An injector that has a shorted winding will drag the circuit voltage down on the rest. Hi Guys, I have a problem with my 4. 3 V6 Mercruiser engine. i am running out of patience with this car, i have spark, i have fuel at the rail, cranks and cranks but still won't start. All wiring seems good to go. Go to: No Start 2: Checking Fuel. This problem is occurring in a 2001 Legacy EJ25 engine (EJ252AWAWL). RPM, MAF flow (g/sec or lb/min), MAF Frequency, MAP, Spark Advance, Knock Retard, Injector Pulse width (left and right banks), O2 sensors - B1S1 and B2S1, IAC Position, L-trim (left and right), S-trim (left and right). The typical injector pulse width for an idling engine at normal operating temperature is between 2. Car: 1996 Eagle Talon Esi with stock 420A, no modifications, 5 spd. The car will start on starter fluid fine so I had ruled out the timing. Spark is good. 3 no spark or injector pulse \015 I have no rpm input on scan tool. I have a feeling that my problem lies elsewhere. Discussion Starter • #1 • 19 m ago. No fuel injector pulses from the fuel injector connectors as tested using a Noid Light. Fuel Pressure should be set to 37-45 PSI with the engine running, vacuum line on the fuel pressure regulator. Old school 69-80. Bought a 1989 prelude that wasnt starting narrowed it down to getting no fuel which turned out to be the main relay resoldered the relay thanks to good write up on here and got fuel pump going and car started up had it idking for good ten minutes but when I moved it it just died out again and wouldn start its getting fuel to injectors and a spark but its not getting a ground pulse to injectors its just getting a 12v source with ignition on I was wondering if it could have anything to do with. Spark, compression, fuel - no injectors pulse. SPARK but no FUEL INJECTOR PULSE, Wont Start! HELP! Jump to Latest Follow 1 - 2 of 2 Posts. Miata won't start. My ground also is good. No restart. well no spark no fuel pump no injector power i'm thinking it the ecu i'm just not sure if there is any other problems that could cause this to happen any ideas Welcome to the WRR/X Forum A place to share your passion for the WR250R/X!. Here is the checklist: Painless wiring harness. 0L Turbo Powertrain (EJ Series Factory 2. The fuel injector harness has power but no ground (signal) when cranking. SPX OTC Fuel Injection Pulse Tester is designed to check cylinder balance by firing individual injectors. 6 F150, starter spins just fine, but it won't start. Discussion Starter • #1 • Aug 13, 2013. When I push switch, injectors spray like crazy. long story - Bad couple of weeks for my S6. And the grounds for the Fuel Rail and Coil are hooked up. i own an auto repair shop, but don't have any info on this system. No spark and no injector pulse. Discussion Starter • #1 • Oct 12. Did you check the spark on this engine? If there is no spark as well, the pick-up coil in the distributor is the most likely problem. The cars battery went completely dead and is now stuck in valet mode if that makes any difference. 2001 saab 9-5 starts then stalls, no injector pulse. Similar Threads - injector pulse spark Forum Date; No spark or injector pulse: 4th Gen Camaro LT1 (1993-1997 Camaro) Aug 26, 2007: Injector pulse width: 4th Gen Camaro LT1 (1993-1997 Camaro) Jun 17, 2017: Planning on doing the LT4 hot cam and have a injector question: 4th Gen Camaro LT1 (1993-1997 Camaro) Dec 3, 2017. Now it cranks, but won't start. Checked for spark. No spark or injector pulse:(Jump to Latest Follow 1 - 4 of 4 Posts. Spark with the SPOUT out, but not with the SPOUT in suggests a PIP problem. Tried to start it again and realized now that my injectors dont fire, and im not gettin spark. An injector that has a shorted winding will drag the circuit voltage down on the rest. The PCM is from a 98 Buick Regal GS. Since that post I have wired in a different harness and checked all powers and grounds and I see no problem. Did some more testing, I'm not getting spark at the plugs either. 2 no spark-replaced module and cranksensor-checked timing chain-ok still no spark cranks ok. Vag com hooks up fine, I can energize the injectors and i register a tach signal in vagcom. Engine rolls over. The PCM is not providing power due to a defective output circuit. I haven't been able to get my car to start. I have a cam code even after swapping with a good sensor, I have not compleatly tested the ground wire going to the PCM but I was thinking maby the cAmshaft sprocket is different due to the crank sprocket. 8 ohms -12V to the pink injector wire - each ground wire is good - ran a test light between the two terminals on multiple injectors and cranked the engine for 10-15 seconds. 3L it cranks but will not run, has no spark or injector pulse. I have tested every wire and went through the vortex Buick no start tree. Didn't test the gound on the coil yet. The truck will almost start with. So i'm just trying to star my sr, the engine crank, the fuel pump work, but got no spark and ingector pulse The ecu send me a code 11 ( CAS) when i try to start the engine but i chek the my wiring many times and chek the CAS as its tell in the FSM and every things ok, grouns are all ok too. ? Just a thought. Pulse width is a term to describe how much average voltage is applied to an injector coil over a given time span - typically about 2. cranking I get zero flashes had a spare set of cam and crank sensors, tried them, same problem. help 84 gn no spark injector pulse. That would show a flicker if the fuel injector was pulsing, correct?. We've tried setting the ecu to stock settings and back to 93 octane stage 2 ap and checked all the wiring. Honda civic dual TBI units use an auxiliary injector which has a saturation driver and a main injector that uses a pulse width modulated driver. 7 that will not fire injectors 1 and 8 all the others fire, we have manually pulsed the injector and it will spray but there is no pulse when plugged in and turned over with the key. So I got an appointment for a dyno tune to to my injectors right because im running the 42lbs. 92 ranger 2. I have a few problems. No spark means no pulse. Mercruiser 4. 0 1994 Jeep Cherokee, No fuel injector pulse, 40 lbs fuel pressure at the fuel rail, changed crankshaft position indicator, PCM is tested good, There is also spark at the spark plugs. Checked basics: had fuel, fuel pump runs and has good pressure & good spark but no injector pulse. EVo8 ecu swap no injector pulse/no spark I am seeking the help of some boosted 3G owners. There is no power to the injector during cranking. i replaced cranks sensor, ignition module, computer, an the coil assemblies. btw its a 96 quattro AAH engine, help is greatly appreciated. 1997 Lincoln Continental 4. '91 S-10 Blazer Fuel pressure good but injectors wont squirt (no injector pulse) both. Main Power and Ground go straight to the battery. Engine won't start (new rebuild), it has spark (new opti and coil) but I do not think the injectors are firing. It will run on carb cleaner sprayed into intake. Remember, if you have no spark, you will have no injector pulse. There should be no light unitil the engine is turning over. I have a feeling that my problem lies elsewhere. Number 6 fuel injector is not getting any power to it. did the machine work), the timing belt, water pump, rollers and seals. Should be 12v. So is the ecm bad or the crank sensors bad. Be sure that fuel selector switch is not in the center (or “off”) position. Hi guys I have a ve ss and have no injector pulse. Well I got to R&R the heads (Dover Cyl. I pulled the old 4. is the car throwing a spark?. Visitor in New Albany, IN on. Alfa Romeo GTV6 Forum: Fuel, Electrical & ignition: Need Checklist. 3 no spark or injector pulse \015 I have no rpm input on scan tool. December 29, 2010. I'm getting spark and compression if I spray ether it'll run as long as there is ether but it will not try and run on its on I checked all connections and I'm not getting any sort of pulse at any of the injectors I've checked the ground on the rear of the drivers side head to goes into the wiring harness and it's good I did notice that I don't. via ignition module. 12v to injectors at run and. If you have no spark, no injector pulse, power to coil and injector, and good fuel pressure, chances are you are missing a tach signal to the computer. It occasionally will fire one cylinder only, but often just cranks. It decided to die in a parking lot after being shut off. I have spark ,i have fuel pressure I have power to injectors but no pulsecould it be a fues causing this?? Joeyxxx , May 10, 2020 at 1:25 PM. General Diagnosis. I use some diy method to test it. As for checking the fuel injector pulse, I have a pulse light that I plugged into the fuel injector connector. I also have no injector pulse, no power, not clicking. 1995 Dodge Dakota 5. Engine runs on other three cylinders. So I think I'm officially stumped. - the ECU ground wires are not not connected to a suitable ground. Sign in to reply. 3 no spark or injector pulse \015 I have no rpm input on scan tool. 0L Turbo Powertrain (EJ Series Factory 2. However, like larry explained the injectors will not pulse. It's a late model 302 Windsor, running a Edelbrock Air-Gap intake manifold. you may be getting pressure but no volume from the fuel pumpsounds weird but they are 2 different things. A DSO or Oscilloscope excels at injector testing, I will not elaborate here on that topic but , it can find sluggish injectors, and many other weaknesses. No trouble codes. New signal wiring was run to each coil from ecu as it was previously setup for wasted spark. I don't see any mention in the service manual saying that this car has any sort of a crankshaft position sensor. no injector pulse. Come to find out after I bought it that the previous owner had pulled both gas tanks and some other parts that I have now replaced. 5 we replace the Crank speed sensor, re check the the fuel injector for pulse, after pulse is confirm, backtrack and check everything one step backward at a time if this fixes the park problem if not continue on, re-check the harness for the coil (and here's where my main problem was), middle contact is still not showing signal from ECU. All grounds check OK. If it doesn't get a signal to the computer the computer will shut off the injectors, and the spark. Fuel pump primes, fuel pressure in the hoses, spark is good (so that rules out the CPS). Car will also run (roughly) if earthing injectors out by tapping wire to earth quickly. If fuel is still not spraying go to fuel system troubleshooting before. done a bit of research and narrowed it down to the immobiliser, could it be the immobiliser has armed or something more simple that I've missed? its a 1. I may just replace it, maybe it shorted the PCM driver? I opened the wiring harness and there are no shorts in driver wire. With a voltmeter or test light Remove plug wire and check for spark while cranking. Double check your timing belt installation to make sure it is properly timed. ) PIP sensor in distributor. I just recently change. If the pick-up coil is the problem, you might be better off replacing the distributor. I have 12 volts to both injectors. The car has a new crank sensor recently installed ran well for a while and now has no injector pulse. I've been fixing little things on it including the a/c thats on the engine and have been running it and shutting down no prob. if power is being supplied to both injectors and coils. No spark, no fuel. I trust you used a noid light or led test light to check for injector pulse. I have just finished wiring up my E6x, started cranking the engine over and am getting no injector pulse. Check to see if there is a code stored, either one failed will set a code. I'm making an assumption he does not have a volt meter to go poking around to confirm the ECM is powered up, so this is the only way I can test that. Is the crank shaft position sensor signal reaching the ECM? you need to also check that the ECM is sending injector pulse signals, the only way to do this is take it to. We've got power at the fuel rail and the coil. ZippuDoozy · Registered. Jump to Latest Follow 1 - 2 of 2 Posts. No spark or injector pulse. 3 V6 EFI won't start no injector pulse June 3rd, 2013, 12:38 PM. Ignition switch relay most time up under the dash by steering column or a CPU/ECM did you have a check engine light on taht stayed on all the time. If you use the key, there is no injector pulse while cranking. already changed pcm with my friends daily driver pcm, changed complete injector harness. I have spark ,i have fuel pressure I have power to injectors but no pulsecould it be a fues causing this?? Joeyxxx , May 10, 2020 at 1:25 PM. Finally tried checking the injectors with a noid light and voila NOTHING. i have fuel pressure at the rail and my fuel pump primes. No trouble codes. When cracking engine, (testing with noid lights on spark and injector) systems get normal pulses, engine tries to start, then pulses stop. Also pulled a plug and no fuel on it however I do have fuel pressure. No pick-up coil input, no spark or injector pulse. No spark and no injector pulse. Verified good fuel pressure at the rail, verified spark. Replies June 4, 2015 at 1:22 am #665681. But injectors pulse works off of ground from ecmyou have to have the grounds at thermostat and intake or will not pulse injectors. It is a Holley Dominator with a GM LSx motor. I'm just wondering if anybody has encountered this. square inch for each of the three fuel gas constituents appears to be satisfactory for a “spark-plug” injector. That will cost you a lot of wasted money. I first replaced the distributor because they were known to go bad, I checked and I thought it was bad but I was wrong. STravis · Registered. If the pick-up coil is the problem, you might be better off replacing the distributor. Joined Oct 3, 2013 · 31 Posts. My friend and I took the injectors on my 98 wrx swap out to test and clean them, re-instralled them and now it won't start. No big surprise there. I have spark but no injector pulse. I have been struggling. Go to: No Start 2: Checking Fuel. Yeah that's actually what I ended up trying last night, no luck. WTH! then checked to see if injectors are working. I'm making an assumption he does not have a volt meter to go poking around to confirm the ECM is powered up, so this is the only way I can test that. Pump, pressure, filter, regulator are all good. The car now has neither spark or injector pulse now. I will post an update next week guys. Here goes again. i took my car to the shop, they test it for me. It will spin over and only start when you spray the intake with fluid. Car will run if spray fuel into intake. We rebuilt the engine. There should be no light unitil the engine is turning over. Discussion Starter • #1 • Oct 19, 2014. Spark and injector signal. 4 cranks no start no injector pulse no spark? Check the 95 Firebirds crank position sensor first. Some coils have an internal resistor, while others rely on a resistor wire or an external resistor to. Have spark-compression-good fuel injector-power to injector, but no injection pulse to this injector. A Noid light will verify signal. If they are good, you will need a pinout of the PCM so you. Swapped no fix. I'd go with the crank position sensor 1st. Re: E8 in R31 (Rb30ET) No start Or spark. New rebuilt engine. no spark no injector pulse - posted in Engine: Engine installation after a build, getting no spark or injector pulse, no trouble codes, redone the timing chain, checked crank sensor getting pulse for rpm, cam sensor fine, checked wiring harness for damage or being unplugged, everything seems fine, getting fuel in the rail but no pulse. Well i found what was causing my engine control fuse to blow. Re: No injector pulse when cranking. Removed the UTEC still no start. 2001 saab 9-5 starts then stalls, no injector pulse. I have seen a good spark and no injector pulse on fords, honda, and holens(gm) and all have lead to a pcm ground, but check its voltage as well. There is no power to the injector during cranking. still need help. kwiktsi · Registered. My 95 honda odyssey has no spark or injector pulse. 2006 Nissan Maxima SL 3. 6 F150, starter spins just fine, but it won't start.
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