Re: Audi it's quite old

Jul 09, 2003 5 Replies
A


I have an Audi 80 e reg petrol fuel injection and have a wierd problem


> withit can anyone give me some logical ideas to help track it down. >
> The cars stalls when warmed up cut ous completely and will not start after 3
> minutes exactly it turn over and starts I have learnt not to run it over
> while waiting this seems to help it only be 3 minutes untill its starts if
> you constantl turn the engine over it wil not start for at leste 20 mins. >
> The distributor is working and has spark and from talking to other people
> who have had similar problems it seems to be a unit called the ignition
> module there is no ignition module mentioned in the hand book but there is a
> power stage which is attached to the coil. has anyone had similar problems
> as I don't want to start to replace everything on vauge recomendations. >
> John
>

Yes its usually the ignition module that causes early 80s Audis I know of a least 2 different types which were fitted but the cutting out is usually random and from your description it could be an injection fault, the cold start system is causing over enrichment, not sure what injection system is on these cars -- K jetronic ? but it is worth a visit to a fuel injection specialist who will be very faimliar with the system.



>
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M

Also check out the Audi owners club, and audifans forums (US I think)

Mike

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C

I had a similar problem in my toyota celica (87).. it turned out to be a pickup module in the distributer. cant remeber what the peice is called but it senses where the distributer rotor is so the computer knows when to fire.

there is a very fine coil in this pickup, inside the plastic you cant see it. when it snaps it works fine until the tempreture changes and the snap/crack causes a gap in the coil = no circuit no position for comp no fire..

wait sometime coil shrinks with loss of heat gap gone car runs..

hope this helps

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P

If it's anything like the piece of sabotage Bosch sold to Citroen it's mounted directly on the distributer body. This is to ensure it gets plenty of heat and vibration - the two things short of a short that are sure to bring an electronic item to an early demise.

Earlier ones were on a cool part of the engine bay metalwork and had a length of wire connecting it to the distributer. Trace wires from coil back to distributer and somewhere along them you will find the electronics module.

-- Peter Hill Spamtrap reply domain as per NNTP-Posting-Host in header Can of worms - what every fisherman wants. Can of worms - what every PC owner gets!

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