Iac 2000rpm
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Join Date: Feb 2009
Location: Quality KY.
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Iac 2000rpm
Well still trying to get this thing to idle. We have tired PCM after PCM with no luck. Unplug it and idle's just fine plug it in and it jumps to 2000 every time. We even went back to a stock PCM and still goes to 2000. Have tried three TB's and four IAC and all do the same. The truck was a 4.8 with a 4L60e Now is a 5.8 with a 4L80e and Maggie and long tub headers and true duels. Truck is making 9lbs of boost and runs great.
HELP!!!!!
HELP!!!!!