ignition problems (i think) somebody please help!!!!

[Ed Kellock]

I had a similar situation in my 87 CGT with the same engine.

The engine would cut out badly very randomly.

Turns out I had a problem with the battery and battery fluid leaked down
inside the main wiring harness as it goes through the firewall, which is
right behind and below the battery.  The acid from the battery chewed
through a bunch of wires. 

I had finally given up and surrended it to a dealer.  They diagnosed and
fixed it for a couple hundred dollars that I was more than happy to pay.

Differen body styles/chassis, but I believe your battery is in approximately
in the same spot on the firewall toward the passenger side of the car.
Wouldn't surprise me that the main wiring harness would be routed similarly.

Something to check anyway.

Ed




> -----Original Message-----
> From: quattro-bounces at audifans.com 
> [mailto:quattro-bounces at audifans.com] On Behalf Of donald grady
> Sent: Wednesday, December 17, 2008 10:34 AM
> To: quattro at audifans.com
> Subject: ignition problems (i think) somebody please help!!!!
> 
> 
> 
> i'm driveng an '88 90 quattro 5 cyl.this problem has been 
> escalating for a while and now the car is not driveable. it 
> started out that the engie will cut out at 3000 rpm kind of 
> like a rev limiter.i found if the fuel meter on the front of 
> the cis fuel meter is unplugged, the car will run fine...but 
> the onboard computer goes to all zero's when 3000 is reached. 
> i've tried swapping just about everything i can think of but 
> i can't finnd the problem and now tthe car won't idle or run 
> properly. it surges stalls and backfires(blew the side out of 
> the muffler when it backfired).i'm at a loss and running in 
> circles.if anyone thinks they can help, please do. 
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