4KQ Idle wandering? Questions and Thoughts.

[Ricky H.]

In my 4KQ I have an aftermaket cam shaft, and its pretty big. 282 to be 
exact, and needless to say it changed the way my car runs greatly, the 
horsepower increase is large but the starting and running of the car is 
terrible.  It only has trouble cold staring, and in warn weather it runs 
like a top but lately when I come to a stop after driving, the idle wanders 
up and down up and down like a balance scale but never levels out. Each time 
it dips it gets progessevly worse.  We have disconnected the O2 sensor 
because the car runs better on a fixed CO setting, but I want to know what 
else could cause the hunting or wandering of my idle like that, temp sensor? 
ignition?  Any thoughts clues.  I have had the cam for about 4 months now 
and when the car is in motion it pulls hard, and runs like NEW, just idle 
and start up sucks, the idle lopes, but that is not the wandering problem, 
the lope is due to the large duarion, i know that, so any help or advice 
would be apriciated.  Thanks.


-Rick Heinlein
1987 4000CS Quattro w/super suspension
http://www.rickyphunk.iwarp.com/carpage.html
"The Audi 4000CS Quattro... a suspension so over built that Audi never built 
it again!"

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