Hi I just installed my apex pfc and I am having a hard time to set the iddle. The idle keep bouncing from 950 to 1200 up and down, then its stabilize but when i touch the gas pedal it start to bounce again. Also when I put load on the car i.e. turn the ac on or the lights it bounce. Do I have to adjust the TPS? the power fc also has a setting were I can monitor the tps voltage? I really need help. I tried to adjust the iddle with the iddle screw but doesn't work. It keeps bouncing any body has this problem. thanks for your help.

 

scroll up a bit and read the "relearn idle" thread. After installing the PFC needs to learn the idle.

 

Do a search as this is the first question many PFC owners ask if they new to FDs.