Smee03

I recently just installeda trick &flow manifold and new throttle body (bbk). At first the car would stall almost everytime in first gear and reverse when you came to a complete stop. The check engine light was on and there was a low voltage code for the throttle body and we had to adjust the 3mm screw so the car would idle a bit higher and it was fine, no stalls or nothing, but when the AC is on it idles lower, around 650-750rpm. When I come to a complete stop (with the AC on) it either stalls right out or the rpms go up a bit first and then slowly come down and stall out. It doesnt do it everytime and it seems to do it less when its not in gear. I also notice the rpms jump up a little bit sometimes when the AC is on, i dont know if thats just the fan or something coming on and off.

mattdel

year/model of the car will help greatly, ya know

Derf00

what other mods do you have?

Your Idle Air Control sensor could need a good cleaning or need to be replaced since most of your problems are occuring at idle or on decel it sounds.

86 5.0L

happens to me too, I've tried all the easy alternatives, now im about to replace the TPS and the IAC