Need HELP: Idle Fluctuation Problem
05-24-08, 05:42 AM
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Need HELP: Idle Fluctuation Problem
Hey everyone i need some help w/ the engine idling problem.. it's keep fluctuating up and down btwn 1k - 1.5k rpm, 93 fd. ive read on the forum about maybe a hose(vacuum) leak problem.. so i replaced all the hosing, and it is still happening. 
wat else could cause this fluctuation.. my friend mention that it can be caused due to a crack in the turbo.
if so, can this be fixed w/ a temp weld job or do i need to replace the turbos completely to get rid of the problem.
THX IN ADVANCE
wat else could cause this fluctuation.. my friend mention that it can be caused due to a crack in the turbo.
if so, can this be fixed w/ a temp weld job or do i need to replace the turbos completely to get rid of the problem.THX IN ADVANCE
Last edited by spdstarx7; 05-24-08 at 05:49 AM.
05-24-08, 12:11 PM
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Try spraying throttle body/carb cleaner around the seals on your UIM, LIM, and throttle body. It's an old trick to find vacuum leaks since you can't really hear a vacuum leak while your engine is running.
The chances that your turbo is cracked in nearly zero. Even if it was, this would not cause a fluctuation in idle since the fd operates off of a MAP and not an MAF.
The chances that your turbo is cracked in nearly zero. Even if it was, this would not cause a fluctuation in idle since the fd operates off of a MAP and not an MAF.
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Jeff20B
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