Question about 2005 Audi A4

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05 audi a4 1.8turbo cranks good, good spark, but no injector pulse, ??? any ideas and thanks

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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  • 82 Answers

SOURCE: audi 2001 a4 1.8t

There are two things to check.
1. It is producing a spark.
2. It is getting petrol through.
To check whether is producing a spark.
Remove one spark plug from engine. Reconnect HT lead and hold it touching car chassis and turn the engine. Do no hold the Ht lead with bare hands while doing this as it carries thousand of volts and will give you nasty shock. Hold it with some insulted material .
When you turn the engine you see spark across the plug electrodes.
As for fuel, trace the fuel pipe coming into the carbureter and disconnect pipe and have someone turn engine .Petrol should gush out showing that the petrol pump is working.

Posted on Oct 14, 2008

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TLRogue
  • 99 Answers

SOURCE: 97 audi a4 no power/battery fuse?

Sounds like either the battery leads are on the wrong way round, or the starter main cable is touching something and shorting to earth. Retrace your steps and check your connection locations.
Either that or its a dead short through the starter. Remove main cable from back of starter and tape up incase of short. then reconnect battery. If ok now then your looking at starter motor.

TL

Posted on Jan 22, 2009

chain saw
  • 94 Answers

SOURCE: 96 audi a6 quattro no spark or injector pulse

I WOULD GO FOR THE ECM AND CHECK WIRING

Posted on Mar 26, 2009

SOURCE: Will These Spark Plug Wires Work for My Audi?

No. I would go with the cheaper set.

Posted on Apr 29, 2009

j_del
  • 1586 Answers

SOURCE: spark plug

NGK plugs work well in the A4, and the OEM gap on a non-modified car is .032".

Posted on Jun 01, 2009

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1 Answer

My daughter car wont start first time but leave it a while and it will start any ideas


What is year--make--model?
When problem is ongoing, if it cranks good but won't start, have a helper crank it while you visually check for spark at the spark plugs. If you have spark everywhere, use a gage and check proper fuel pressure. Also, check for fuel injector pulse.

Dec 03, 2015 | Cars & Trucks

1 Answer

No spark no injector pulse


No Start, No Spark, No Injector Pulse (faulty crank sensor ...

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No Start No Spark Case Study 1997 Lincoln Continental 4.6 How to test a VR type crank sensor. (VRS) This ...

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Nov 25, 2015 | Cars & Trucks

1 Answer

Wont start. it has injector pulse but no spark


is there power and ground to the coils?

If there is injector pulse than the crank sensor has to be good. Injector pulse and spark are both calculated off from the signal from the crank sensor.

Checking for power and ground to the coils is a good place to start. If that checks out than either there is a wiring issue in between the PCM and the coils or possible the PCM has failed.

Nov 20, 2015 | 2001 Pontiac Firebird Trans Am

1 Answer

I have no injector impluse


no injector pulse - DodgeForum.com

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Nov 21, 2010 - no injector pulse 2nd Gen Ram Tech. ... but was running and driving fine before. as far as i can tell i have no injector pulse. tested with a noid ... No spark AND no fuel injector pulse ONLY when van is cold ...
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1 Answer

I have a 2003 Oldsmobile Alero 3.4L that wont start. I have done fuel pressure test 50-55 psi and plugs have good spark. However when done light test on injectors there is no response so there is no pulse....


Is the security light staying on ?
Usually the engine will not crank and you have no power to the fuel pump if the security system is disabling the car.
No injector pulse but spark would point to the computer since both use input from the crank and cam sensors.

Dec 22, 2012 | Cars & Trucks

1 Answer

No injector pulse


what vehicle? injector pulse controlled by computer. the computer recieves a pulse from crank angle sensor, or distributor pick up, etc.
then controls injector pulse. Mass air flow on some vehicles determines spray pattern

Jun 29, 2012 | 1991 Chevrolet Cavalier

1 Answer

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


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.

Nov 19, 2009 | 1988 Audi 80

1 Answer

My 1990 Chevy Celebrity wagon 3.1 multiport fuel injection is getting fuel to the rack at 45psi, but is not going through the injectors. Any idea the probable cause?


DO YOU HAVE 12 VOLTS ON INJECTOR WIRE ON ONE SIDE WITH KEY ON? IF SO ARE YOU GETTING SPARK? IF YOU HAVE NEITHER YOU MAY NEED A NEW CRANK SENSOR. VERY COMMON ON THIS ENGINE WHEN THERE IS A LOSS OF SPARK AND INJECTOR PULSE. INJECTOR PULSE(GROUND SIDE)IS CONTROLLED BY THE COMPUTER. IF YOU HAVE SPARK BUT NO INJECTOR PULSE AND 12 VOLTS ON INJECTOR FEED WIRE YOU MAY HAVE A FAUTY ECM(ENGINE COMPUTER)

Aug 31, 2009 | 1990 Chevrolet Celebrity

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