check your throttle position switch - Saab 9000 Bulletin Board - Saabnet.com
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check your throttle position switch
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Posted by Chris R. [Email] (more from Chris R.) on Wed, 24 Apr 2002 03:46:39 Share Post by Email
In Reply to: Stumbling 9000, T16 TP, Tue, 23 Apr 2002 17:00:05
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I as well have the same problem right now. I have a very good mechanic that likes to help me do my own repairs and so he helped me diagnose what was going on with my car. John Adams suggestion might work for you but you might also need a new throttle position switch(i need both the AIC and TPS) which is the black box connected to the throttle body and has a three prong electrical connection coming off. These have a tendency to go out on a regular basis. All it does is pretty much tell your car where the throttle is positioned and the computer adjusts idle speed and fuel/air mixture to compensate. It does this by giving of different amounts of current. I'm kinda hazy on how we came to the concensus that it was shot all I remember is that it didn't give a constant reading at WOT, instead every time it was opened to WOT, the reading would increase. Anyways try John's suggestion and if that doesn't work get a new TPS from one of the site sponsors, they charge half of what the dealer quoted me and see if it helps.
good luck!


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