was 5KTQ Max spark retard @ 0.9 bar now intercooler temp sens or: FIXED

[Paul Meyers]

Besides, Audi wants like 120 bucks for the sucker. Anyway, it was the inlet
air temp sensor. One of the wires had broken off from one of the connectors
inside the boot. A judicious crimp and voila, problem solved. Incidentally,
the current ETKA at the dealer also shows the temp sensor in the wrong
place. It is, of course, on the intercooler near the exit.

Thanks for your help everyone who responded. I also replaced the WOT switch
and ye olde spark plugs for good measure. The car now has satisfactory
performance, but still won't pull past 1.0 bar. But that's a problem for
another day. Thanks guys.

Paul Meyers 
Gray 87 5KCSTQ 1.8bar eurolights fuchs 145 kM, needs loom transplant 
Pearl 88 5KCSTQ 1.8bar eurolights fuchs bilsteins 125 kM 2pc-em k24 turbo 
Metallic White 87 5KTQW 191 kM daily driver
Blue 86 5KCSTQ parts car 



-----Original Message-----
From: Buchholz, Steven [mailto:Steven.Buchholz at kla-tencor.com]
Sent: Thursday, August 24, 2000 2:55 PM
To: 'Paul Meyers'
Subject: RE: was 5KTQ Max spark retard @ 0.9 bar now intercooler temp
sens or


... don't just replace the sensor because someone told you its bad!  Have
you pulled codes from the ECU?  I had a problem with the check engine light
coming on in light boost situations ... it was a bad knock sensor ...
another common malady on the MC-I engines.  


What version of TFA do you have?  Remember that most of these are from
Europe, so it may not include your car exactly.  I've also seen cases where
the illustration does not exactly match what the part looks like or where it
goes.  My '88 5kCSQ Avant has a temp sensor that mounts in the intercooler
just as you are describing ... whereas the urquattro has a temp sensor
mounted to the intake manifold downstream of the throttle body ...

HTH!
Steve Buchholz
San Jose, CA (USA)
> 
> I have searched in vain on the family album for a temperature sensor that
> plugs into the intercooler as mine does. The album shows the temp sensor
> attached to the intake manifold after the throttle body. What gives? I'm
> trying to track down a part here. If the inlet air temp sensor is the
> culprit, I would like to find out how to replace it.