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Hi I have a 96 legacy 2.2L 5spd that had an idle issue. What would happen is when it was warming up it would low idle ( like 300-400rpm) and the car would shake, but when accelerating it was fine. At first I thought fuel pressure regulator was sticky or something, but fuel pressure was fine all the time. I removed the Idle Air control module on the side of the throttle body and sprayed it really good with cleaner. I also sprayed a little in the throttle body itself. Now the car idles like it's supposed to :banana:!

So for anyone with an inconsistant idle ( like always too high or low) I suggest cleaning the IAC before doing too much else ( since it only takes 15 minutes).

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Now the car idles like it's supposed to :banana:!

 

 

Yeah, isn't it great when such a relatively easy bit of maintenance yields such an obvious improvement?

 

The IACV is a great place to start to fix idle issues. Thanks for posting your success--good reminder for everyone.

 

Oh, and welcome to the board! :)

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[...]So for anyone with an inconsistant idle ( like always too high or low) I suggest cleaning the IAC before doing too much else ( since it only takes 15 minutes).

Congratulations on resolving the problem. Gloyale deserves credit for suggesting the IAC being the culprit, in a reply to your previous thread. See: http://www.ultimatesubaru.org/forum/showpost.php?p=807232

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