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RE: Audi 5000 Fuel Distributor
I developed the exact same symptoms last week with my '88 5kcsqw.
Figuring it was either the fuel distributor valve or a fouled injector,
I ran two tanks with injector cleaner added to see if I might get lucky
and avoid replacement of the offending part. After about 200 miles, the
problem had diminished to nothing. This chilly morning, a few days
later, a slight miss returned - but disappeared again as the car warmed
I suspect I've got an injector that was sticking in the closed position.
I am leaning toward this as an explanation, because the engine felt more
like there was a distinct cylinder miss than a more general lean state
from a sticky distributor valve. We'll see how it does after a few
months... maybe a good cleaning will manage the problem.
> From: Dennis Larson[SMTP:firstname.lastname@example.org]
> Sent: Sunday, November 30, 1997 8:18 PM
> To: email@example.com
> Subject: Audi 5000 Fuel Distributor
> I figured I got a defective distributor and replaced it with another
> model. No change at all!
> Here is what happens now. Start up from cold is fine, flawless
> power good until the engine warms and mixture leans out a bit. Then I
> rough idle and mildly rough acceleration up to about 1600 RPM. Then it
> smooth at driving speeds.
> Some possibilities - maybe a fuel injector collected some dirt from
> newer used distributor, maybe a fuel injector just decided to go
> maybe I have gotten hold of two used and defective distributors, maybe
> something I haven't thought of yet.
> Ideas out there?
> Otherwise the car in its advanced age are fine, as usual an excellent
> high-speed road car winter and summer.
> Dennis [Minnesota/BN Highline]