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avbcon12 · 08-27-2001, 01:37 PM

i have a 90 GT that idles really rough on start ups when it is warm. when i turn the key it will rev to about 1200 then down to 500 then back again. after a few times doing so it will level off at 700. i have no clue what is happening. i dont get any codes but the smog stuff. i have new IAB, TPS, and when driving it runs and idles fine. only on start ups does it do this. what could be the problem?

please help.
thanks
Adam

08-27-2001, 01:37 PM	#1
avbcon12 Registered Member Join Date: Jul 2001 Location: West Bloomfield, MI Posts: 391	Please help me, im having problems. i have a 90 GT that idles really rough on start ups when it is warm. when i turn the key it will rev to about 1200 then down to 500 then back again. after a few times doing so it will level off at 700. i have no clue what is happening. i dont get any codes but the smog stuff. i have new IAB, TPS, and when driving it runs and idles fine. only on start ups does it do this. what could be the problem? please help. thanks Adam