Potentially looking for a good used AAN ECU

[UrS4boy]

I am trying to help a fellow with a 92 UrS4 in Dubai who may have a dead ECU. His cowl drain got plugged with leaves and things and when it rained (IT RAINED IN DUBAI!!), it the cowl area flooded and backed up water into the passenger compartment, flooding the ECU (at least getting it wet). (BTW: This is a fairly common cause of AAN ECU deaths. You need to keep that cowl drain clear).

He has removed the ECU and is has dried it out. Car still won't start and VAG is not getting a response. I am getting him to check the power to the ECU via pin 18/55 and the S64(S26 in Bentley) fuse. It could be the problem. In the mean time, I said that I would enquire as to the potential of finding a good used AAN ECU. I do not know if he has an immobilizer or not.

Any leads (or suggestions) would be appreciated.

Dave F,

[haaran]

Le S2 Audi has had one for sale recently, he may still have it. I have a ABY one if it's any use.

[S2central.net]

I know of one ECU that was waterlogged for a few days... then it started to rust before it came to me... Bit of a clean up and all was good.

I'd guess there is lots of moisture through the cars loom after this nasty event so it might be worth ensuring its all dried out before trying another ECU. Also worth checking the engine isn't a 'no start' because of some alarm or whatver else might have drowned in the flood.

[Le S2 Audi]

Le S2 Audi has had one for sale recently, he may still have it. I have a ABY one if it's any use.

Thanks for the thought, but it's now sold...

It was a Homefried one also!!

[UrS4boy]

Paul: If it isn't something stupid easy like the S64/S26 fuse on the hot line to the ECU blown, would you be willing to assess this guy's ECU (for a price of course)?

I presume that he would use DHL or some such to get it to you (at his cost).

Dave F.