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Power FC Freerevving when started...

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Old Apr 4, 2008 | 01:49 AM
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siguy2k's Avatar
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Freerevving when started...

I just worked for 12hours straight to get my car back together to leave tommorow and go get tuned in St. louis. Put my 1600cc injectors and wiring in the resistors, put new turbo, diff mount, etc. I load my base map provided by banzai, and it was running fine, let it warm up and was playing with the idle afr, gave it alittle rev to 4k and it started jumping from 1.5-3rpm. Shut it down and restarted it and it just revved to 4grand and was staying there. I shut it off and tryed loading the base map again and same thing, just revving. Checked all my linkage and nothing is wrong. Im so fed up with this car if someone could help me it would be very much appreciated.
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Old Apr 4, 2008 | 04:55 AM
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From the exceedingly limited information you have given , it sounds like you need to adjust the TPS. Go to the sensor switch screen in ETC, VTA1 and VTA2 these are your TPS settings one should be between .50-.75 the other between .75 and 1.25, if not then turn the TPS screw like you normally would and bring them within range.

There is an air mixture screw on the back side of the throttlebody that may need to be adjusted as well.

The other thing you may want to check is the BAC, try disconnecting it, if it is stuck open then this will act as a large vacuum leak.

The other thing to check is your connection for the MAP sensor. If the boost reading on the commander is not changing then you have it hooked to the wrong spot
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