Mechanics

GOT AN A6 COIL PACK POPPED OFF AND THOUGHT THE ECU HAD FRIED BECAUSE THE CAR TURNED OVER BUT WONT START

2001 Audi S6 • 94,000 miles

Got an audi a6 2001 coil pack popped off and thought the ecu had fried because the car turned over but wouldnt start, checked fuses and so, sent the ecu away to ecu express, got a replacement with the codes all on it, the car turns over but doesnt want to start still. Can you help me please
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Boab
October 22, 2011.




Determine if its compression, fuel or spark problem-Do below

http://www.2carpros.com/articles/car-cranks-but-wont-start

Get a helper disconnect a sparkplug wire or 2 and ground it to the engine atleast 3/16 away from ground-have helper crank engine over-do you have a snapping blue spark? If so-you have a fuel related problem, Do you hear the fuel pump come On when you turn key on? If not check fuel pump fuse and fuel pump relay if okay-check the fuel pressure to rule out the fuel filter/fuel pump/pressure regulator and listen to the injector/s are they pulsing or hook up a noid light. No snapping blue spark continue to troubleshoot the ignition system-power input to the coil/coil packs,coil's resistances,cap and rotor,distributor pick-up coil, ignition control module, cam and crank sensors and computer Note: If it doesn't apply disregard it and keep testing

If both fuel and spark is present-check the valve and ignition timing, this will lead you to problems

with compression and valves opening and closing at the wrong time/broken or jumped timing

belt/chain.

Rasmataz
Oct 26, 2011.


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