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RE: CIS-E III Questions.



I'm still thinking worn out, broken, or missing motor mounts.  That
might explain both problems.  If the engine is torqing over too much, it
could be putting tension on some wiring somewhere.  I've experienced the
same steering behavior in my 87.5 Coupe.  I know my mounts are very
tired.

Ed

> -----Original Message-----
> From:	J4KQ4me@aol.com [SMTP:J4KQ4me@aol.com]
> Sent:	Friday, February 13, 1998 1:25 AM
> To:	sfc@sirius.com
> Cc:	quattro@coimbra.ans.net
> Subject:	Re: CIS-E III Questions.
> 
> Thanks for all of the responses..
>        As of right now, I have rigged my digital multi-meter up so I
> can read
> the output to the differential pressure regulator while driving. After
> fine
> tuning the fuel mixture to 0ma per the service manual, I've discovered
> that
> the system is pulling back the enrichment signal when the car has this
> power
> loss situation. The numbers under hard accel jump to +7to +10ma, and
> will drop
> slightly when it has the problem. I've come to the conclusion that
> there may
> be some type of intermittant breach in the wiring between the air flow
> sensor
> pot., or in the 02 sensor circuit. As I've stated previously, the 02
> sensor is
> almost brand new, (No change after replacement) and I've found that
> the wiring
> harness to the airflow sensor pot. to be lacking in any slack, so I
> will get
> into a little further testing. 
>       Has anyone else had experience with testing via the Diff. press.
> regulator signal and driving? I am going to hook it up to a friends
> 87.5 coupe
> soon and see what type of numbers that one produces.  The Bentley
> manual is
> vague about this information.
>        As for the binding, when accelerating hard in a sharp turn,
> such as
> leaving a parking lot to merge into traffic, the steering has to be
> brought
> back to center forcibly. This is not normal fwd torque steer. It will
> happen
> even in a straight line making minor course correction a chore. I've
> replaced
> all of the crappy worn out bushes and so on, and it has had a recent
> and
> proper wheel alingment. Someone has suggested bad engine mounting?
> Any
> comments?
> 
>  Thanks - Jon.
> 
> 1985 4KQ (Worst Audi I've owned so far) 127K and breaking...
>  1987.5 (8/87! prod date) Coupe GT (Best Audi I've ever owned) 168K
> and still
> fast.
>    1984 5000S Avant 112K and still deadly slow.
>      1981 VW Rabbit convertible 268K and shorting. (Hand me the
> flashlight.. I
> Think the fusebox melted... again.)