Rev Hang OMFG this car!!!

Dub Jones

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Ok this car is driving me nuts.

i did the IAC restrictor mod to eliminate rev hang... That ****ed up my idle forcing it to idle at 1500rpm

I removed the IAC restrictor got a new tune from my tuner to make my car idle lower than 1000rpms.

It now idles perfect at 750rpms and rev hangs like a *****. Ill come out of a gear and it will just sit at 2000rpms until i rev the car.

What on earth needs to be done? TPS replaced? IAC? I adjusted my TB idle screw which i didnt want to do so i might try to put that back where it was.
 

Ferocious

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Check out this website..
http://www.muscularmustangs.com/iac.php

There's about 5 different steps. Do them one by one in order and i'm willing to be one of them will fix you idle problem. "Hanging idle" entails it could be a couple of things, so start by knocking out the easy/free fixes.
 

g36 monkey

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97.5% of the time it's a vacuum leak. I like to smoke a cigar, and exhale the smoke into a vacuum line then watch for where the smoke comes out
 

1998cobrasvt

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Ok this car is driving me nuts.

i did the IAC restrictor mod to eliminate rev hang... That ****ed up my idle forcing it to idle at 1500rpm

I removed the IAC restrictor got a new tune from my tuner to make my car idle lower than 1000rpms.

It now idles perfect at 750rpms and rev hangs like a *****. Ill come out of a gear and it will just sit at 2000rpms until i rev the car.

What on earth needs to be done? TPS replaced? IAC? I adjusted my TB idle screw which i didnt want to do so i might try to put that back where it was.

6v6en.jpg





When it hangs just tap it once? :shrug: Music.
 

ttocs

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you put in the restrictor plate, and then it went up to 1500 rpm? Then after it was removed it was still too high? Sounds like you have a leak in something somewhere since you put the plate in and now that its removed. You can't fix that with a tune or with the idle air adjustment. Double check all your vac lines.
 

DropTopPony

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I like the cigar method especially if its a Ashton VSG and I have a good 12 pack to go with it.
 

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