cis 3 pot to map sensor conversion questions

[Alan Pritchard]

Yup, mine does something just as weird, itll generally happen within the
transition from cold to warm (ie when the thermostat is opening). A sudden
loss of power, feeling like serious retardation. A pull of the fault codes
spits out the potentiometer code, uipon inspection of the pot, no
problems... I figure if I disconnect the wot switch it'll go away, but with
ms on the way I can wait. But I will be putting in my map sensor next week,
let you know how it goes.

 -----Original Message-----
From: 	Huw Powell [mailto:audi at humanspeakers.com] 
Sent:	02 December 2003 22:39
To:	Jim Green
Cc:	Quattro List (E-mail)
Subject:	Re: cis 3 pot to map sensor conversion questions


> Alan, the goal is to fake the CIS3 computer into
> thinking nothing on the engine is out of wack.  I wish
> it were as simple as just feeding it a load signal and
> having it pull timing, but it knows when the load
> doesn't match engine RPM's and what ever else it might
> be monitoring.  Then it goes into a limp mode, not
> full retard, but retarded enough to really piss you
> off. 

This is a very interesting point that I hadn't heard of before.

My 90Q has an odd habit of sometimes turning into a dead dog in second 
gear after a warm start and take-off.  It then comes back quite soon, 
but it is a little irritating, especially since I have replaced just 
about anything I thought could affect it.

Also, since I was getting no check engine light, it didn't make sense 
for it to a "full retard" situation due to engine knock.

Perhaps it's time to hook up my little harness and re-examine my 
potentiometer's operation under different conditions...

-- 
Huw Powell

http://www.humanspeakers.com/audi

http://www.humanthoughts.org/

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