warm start, mustang idle , surging

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musclestang89
August 30, 2008
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it has a new IAC, and there is a small hole in the TB. Also the TPS is set at .97.

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HPRacing
August 29, 2008
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When I modded my 5.0 to include the cam it idle like that too but it didn't quit, it never idled at a steady RPM. I got a chip and it made it a little better. I believe there was something you could mess with the IAC or some aftermarket throttle bodies needed a small hole drilled in the blade.

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