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Has anyone ever had this code come up. P0507 Idle Control System RPM higher Than Expected. Did it after installing nitrous.
 

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I'd be concerned about a vacuum leak. PCM is unable to reduce the idle speed with the IAC and the idle is too high.
 

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yeah I did, but it was after I upped the idle because the cam lope was causing me to stall out when I had the brakes on and turned the steering wheel.
 
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