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Old 08-03-2010, 04:36 PM   #15
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KaraMac is on a distinguished road
Join Date: Jul 2010
Location: Pacific Northwest
Posts: 23

1999 SL1
Default Re: Cleaning the EGR valve and other questions...

I took my throttle body apart, replace the TPS and the IACV, cleaned every surface again, made sure everything was on tight and tested the seal afterward with brake cleaner to look for vacuum leaks. The car is still idling high, now even higher than when I started this endeavor! There doesn't seem to be a vacuum leak because it stays high when I spray it.

I'm not sure where to start now! The car is running a lot better and more smoothly. Is there a way to reset the idle and that's what I'm missing? I let the car sit overnight with the battery unplugged and that didn't change anything either.

Hmm... Any suggestions would be spectacular.


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