Question about 1988 Audi 80

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Lack of spark and injector pulse on audi 80 have replaced coil pack distributor and crank sensor still no joy

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Lack of injector pulse? perhaps there is a controller problem..like a pcm or something....without anymore information, i can't tell you anything else.

Posted on Nov 19, 2009

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1 Answer

Injectors and spark plugs do not have pulse


CHECK BOTH THE OVERHEAD CAMSHAFT SENSOR AND YOUR BOTTOM CRANKSHAFT SENSOR, THESE TWO SENSORS WHERE PUT IN TO REPLACE YOUR DISTRIBUTOR, THE ARE BOTH ELTROMAGNETIC AND SEND PULSES TO THE BRAIN AND KEEPS YOUR CAR IN TIME AND IT ALSO SENDS PULSES THRU YOUR COIL PACKS

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Hesitation when excelarating while driving


Check compression in #1. A cylinder needs gas, spark, and compression to fire. Check spark with a calibrated spark tester. It could be an injector problem, so check for pulsing of the injector. Does the spark plug show wetness after being cranked over?
The compression in #1 should be within 75-80% of the highest reading cylinder.

Mar 23, 2014 | 2000 Ford Mustang

1 Answer

1999 volkswagon jetta v6 cranks but wont start


I'm having a similar issue with my '97 Golf K2 with a 2.0 I checked the resistance to the crank sensor and it was almost 900ohms with the replacement one being 500 ohms. Changed it, didn't work.


Mine was running fine driving 70MPH on the highway and just shut off. Now it cranks, fuel pump runs and it seems to be getting fuel but still no spark. I have a coil/module on order and will try it tomorrow.


UPDATE

Replaced the coil. Coil sparks once when you first turn the key on, that's it. crank sensor has already been replaced yesterday.
Injectors seem to fire (I smell fuel if I crank it a while) but still no spark.
I have 12V to the coil and 12V when cranking.

I see tons of posts with this issue but no resolutions. Come on somebody has to have been here before....

UPDATE #2

I do NOT have an injector pulse or a pulsed signal to the coil. When I crank the car the oil pressure light blinks on and off (just noticed this not sure if it is relevant)

I do get a check engine light when I turn the key on and when cranking, thought this meant ECU was good?

Any other way to test the ECU?

Could the pick up in the distributor be bad? Doesn't the pick up signal the ECU to fire the coil and injectors, I thought the crank sensor was just a TDC reference point?

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Mar 15, 2013 | Cars & Trucks

1 Answer

Car starts and runs for about 13 to 20 minutes got new computer map mas still no go. wait for engine to cool off and will start. fan does not engage but sensors test ok. during diagnostics fan will run i ...


Just did one in my shop yesterday. MY problem was injectors shorting out drivers in PCM after half hour of cooling down it would restart and die again about 20mins later. You need to narrow down what is dropping out. Most likely your loosing injector pulse and/or spark. You can buy a noid light for injector testing and a inline spark tester which you can tag on igition coil pack from local parts store also you can tag into injector harness on passenger side of engine with noid light, when it stalls see if light is blinking while cranking on both testers. IF you have spark but no injector pulse you have one or more injectors shorting (acceptable range is 13 ohms) any lower than 13 ohms injectors are toast. IF no spark and no pulse your ignition module and or crank sensor are bad, replace both, module is under coil pack and sensor on side of block.

May 12, 2011 | 1988 Buick Regal

1 Answer

The car cranks but won't start. There is no spark, no fuel, no injector pulse. I have manually made the contacts in the shut down relay still nothing. I jumped the fuel relay and the fuel pump runs and I...


If you remove the fuel line and crank the engine and get fuel then you could be assured that the crank sensor works but if there is no fuel while cranking then the crank sensor is most likely the fault. If the crank sensor is not the problem then it is most likely in the coil or distributor which the 97 is notorious for.

Sep 06, 2010 | 1997 Chrysler Cirrus

1 Answer

2004 Kia Rio turns over but won't start.


These are coil packs,the most likely problem will be the crank sensor,or the cam sensor,these are what trigger the pulse for spark,and injector pulse.

Jun 07, 2010 | 2004 Kia Rio

2 Answers

I have no spark.. have replaced crank sensor, computer, coil pack.... cranks over fine just no fire.... also injectors are pulsing with key in on posistion


The coil is good after you check resistance from primary and secondary terminals, but it won't generate spark if there is not pulsing at the primary terminals. You can generate sparks by connecting at the primary coil to 12 volts from the battery. Connect the secondary terminal to a spark plug. Now the primary connection has to make pulses on off continuously (either positive or negative ) to generate the spark from the secondary terminal (now is at the spark plug). If you have spark here then the problem is the ignition module. It is a electronic device to perform the function as you just did to generate the spark. Good luck.

Nov 10, 2009 | 1992 Oldsmobile Silhouette

1 Answer

96 audi a6 quattro no spark or injector pulse


I WOULD GO FOR THE ECM AND CHECK WIRING

Feb 22, 2009 | 1999 Audi A6

2 Answers

I cant get spark out of the coil pack


cam sensor fires the injectors to synchronise injector pulsing with the spark at the spark plugs.. U need to probably change the crankshaft sensor (around the crank pulley) as the crank sensor is what controls the ignition spark.
hope that does it.
:)

Jan 20, 2009 | 1996 Plymouth Voyager

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