doesn't seem to idle

[blackfiveoh]

searched, didn't really know what to search for, found nothing

I have a 1991 GT and just added Cobra heads with factory roller rockers, cobra intake, e303 cam, 65mm throttle body, and equal lenth headers.

When i start it up it idles good but when you rev is a couple times and then let it sit the idle will start to fluctuate up and down 2-5 times until it stalls. When i take it down the road and go thru a couple of gears and then either stop at a light or just puch in the clutch it will stall or the idle will drop dramatically. Its like the tsp sensor or something is messed up. I don't know what else to look for or if it is the tps i don't know how to fix it.

 

[jrichker]

See "Help me create the Surging Idle Checklist" at http://forums.stangnet.com/showthread.php?t=534062
for help with your idle problems. The first post contains all the updates to the fixes. I continue to update it as more people post fixes or ask questions.

 

[blackfiveoh]

it idles fine when cold but when it warms up is when it has the problem

 

[HISSIN50]

The sticky addresses issues at all times - hot or cold. You would be hard-pressed to get a reply or info on this thread that isn't already on JR's Sticky.

Good luck.