need help
07-24-2009, 08:41 PM
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Launching!
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need help Just installed new 402 in my F body with Auto trans. The car was dyno tuned and ran great on the street. After I left the shop it ran great. after about 15 min. of driving I stopped for a traffic signal and the car stalled. started it up ran great, for a while then stalled again at two quick lights. started it up and it drove great the rest of the way home. Next day went to start it and it would not idle. after a few minutes it idled good 900-1000 RPMs and drove great. stopped by a friends house for about 15 min and it would not idle without peddling the gas. After I got it to idle it drove great. Car has Fast 92 with NW 92 TB, cam is 240 244 113+3LSA at around .650 lift with AFR 225 heads. Checked TPS and everything is good. Need some suggestions.
07-25-2009, 06:55 AM
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Launching!
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NJ, about an hour from the DMB. TPS voltage is .61 and the IAC hovers around 35 at idle. Like I said it doesn't do it all the time just out of the blue, although when its not hot its always has trouble when first started. other than that drivability is great.