(no subject)

[Tom Mullane]

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I had a similar experience with a 1993 90 I used to own.  Intermittent flic=
kering, especially during warm-up.  If you let the engine warm up fully bef=
ore driving, no problem.  Eventually I figured out that the wires to the OX=
S were twisted; the white wires to the heater were inducing a current into =
the black sensor wire.  I unplugged the sensor, untwisted the wires, and ne=
ver saw the light again.  Unfortunately, I'm not sure how your bump issue f=
its, but check the OXS wiring.  Try wiggling the wires while the car is idl=
ing with a helper watching the light.  Sometimes there can be a short where=
 the wires enter the sensor.

Tom Mullane
Hartford, CT
91 200Q
91 CQ
99 A6Q
Etc.

From: "Ingo D. Rautenberg" <ingo at waratap.com>
To: <200q20v at audifans.com>
Subject: Re: a flickering check-engine light
Date: Tue, 8 Jul 2003 12:45:09 -0400

Just a stab, but had the check engine light on constantly on the v8 I picked
up in Cali a few months back.  Scott J. spotted the culprit --ended up being
a knock sensor's wiring grounding out where the sheathing had crumbled away
due to heat/age.  May be worth looking into.  BTW, I didn't replace said
sensor, instead wrapping electrical tape and that black flexible conduit for
wiring looms instead.  No more check engine light and at least 50 more
ponies!

-Ingo
'91 200q20v...Slightly modified
'84 Tornado Red Urquattro
'90 v8 quattro (again)
'91 v8 quattro 5-Speed (not exactly stock) :-)
http://hometown.aol.com/quattringo/index.html



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