Matt90LX

Hey guys, I recently installed a new cam (E-303) and Trick Flow upper and lower intake on my 90 LX, and now it wont idle when it gets warm. It runs great when it first start it, but after the temp comes up two lines on the stock guage it dies and then wont idle on restart. If i put a little pressure on the thottle to hold RPM's at about 1,000 it runs like it should but as soon as i take my foot off the pedle it dies.

What could be causing this problem, I have replaced the IAC valve, could it be in the distributor? Any input is much appreciated

Thanks

mustangmike33

check the tps (throttle position sensor) it could be that, or it could be a vacuum leak. take some parts cleaner and spray it around the intake gaskets front back side to side and see it the idle picks up at all, if so then thats your problem.