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Unstable Idle

   
Old Apr 1, 2013 | 06:27 AM
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FunEvoguy
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Unstable Idle
Hey everyone im having an idle like this person



Now is this normal or is the car meant to idle like this
Could it be my tune or something else?
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Old Apr 1, 2013 | 06:30 AM
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grillpt
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Your idle air control valve is most likely bad. I had to replace mine a few weeks ago. The part is expensive from mitsu, I bought an aftermarket one, it was still over $200.
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Old Apr 1, 2013 | 07:44 AM
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thedru13
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If it is the IAC you can try and take it out and clean it. Also there is a way to volt test it to see if its failing
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Old Apr 1, 2013 | 08:30 AM
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FunEvoguy
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wouldnt a bad iac cause the car to almost stall and make the car fight itself to stay on? it doesnt do that its just fluctuating alot
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Old Apr 1, 2013 | 08:33 AM
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PID!!!!

Mine does the same and I fitted a new IAC valve. Whem my idle timing is like 3 deg and I adjust PID its is ok.
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Old Apr 1, 2013 | 08:45 AM
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thedru13
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I would start at the IAC first.. Also have you checked for any boost leaks?
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