Truck hunts for idle ????

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Nov 12, 2009 | 08:54 PM

Mangled03gmc

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From: In a van DOWN BY THE RIVER

Truck hunts for idle ????

It isn't all the time, only some times, esp on rainy or damp days, after i blip the gas.. It trys to find idle, I often have to give it the slightest bit of throttle to let it settle down or it will die.. I do not have any logs of it, just looking for some insight of poss things.. BTW the vacuum at idles is 14-15, is a MAF tune.. I havn't bothered Justin cause I know he is busy, but def need to get down to him.. Thanks

Last edited by Mangled03gmc; Nov 12, 2009 at 10:21 PM.

Nov 12, 2009 | 09:00 PM

17,16,15,14,13,12,11 Drvr

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From: Mont Belvieu, Texas

are you useing hp or efi?

if hp you need to build a RAF running air flow histogram and run it from cold to hot without a/c or fans working.

good luck.

Nov 12, 2009 | 09:03 PM

Mangled03gmc

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From: In a van DOWN BY THE RIVER

Im sorry it is EFI... And I am not savy on it either

Nov 12, 2009 | 09:49 PM

17,16,15,14,13,12,11 Drvr

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From: Mont Belvieu, Texas

me either lol, good luck.

Nov 12, 2009 | 10:01 PM

Mangled03gmc

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From: In a van DOWN BY THE RIVER

...

Nov 12, 2009 | 11:31 PM

Mangled03gmc

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From: In a van DOWN BY THE RIVER

Top it of for the night crew

Nov 13, 2009 | 01:47 AM

viciousknid

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From: Dover, Oklahoma

I've had that problem regardless of the weather. Had to adjust the throttle cracker and throttle follower.

This thread is good to read through. though it is quite intimidating.

http://forum.efilive.com/showthread.php?t=4661