Ford Mustang Forum - View Single Post - 2006 Mustang GT Low Idle Issues
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post #1 of (permalink) Old 06-29-2010 Thread Starter
rjackson33
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Location: Yukon
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2006 Mustang GT Low Idle Issues

2006 GT, JBA Long Tube Headers, off road H pipe, Pypes mid muffler exhaust, SCT Tuner w/ custom tune.

When coming to a stop, car will idle down to 500 and sometimes a little lower and die. Seems to do it worse when engine is cold. Replaced the Throttle position sensor, did not help, adjusted the custom tune, did not help. When engine is warm, it still idles down to 500 until car is stopped and will idle up to 650. Cannot figure this low idle out. I extended the O/2 sensors and this is when all this started. Bought the custom tune from American Muscle with the Bama custom tune, did not help the low idle. Hopefully it will get better fuel mileage with the tune. HELP

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