Thread: s13 with sr20det with apexi pfc idling problem!

Hello guys i have a sr20det build mated with the power fc. My problem is i cannot get the idling rpm under 1300. As soon as i command lower rpms the car is hunting like mad. i did the idling learning procedure a few times with no avail. I tried to manually set the idle through the idle screw but the screw seems to have no effect on the car. i looked for a vacuum leak but there is none. can it be that the apexi cannot handle the idling of the sr20det? Thanks!

Power FC is garbage. This is 2020. What are you doing?

You probably could solve the problem and retain the Power FC, but why would you want to?

i got it for free from a friend. i know its old but i would like to solve this problem if it is possible. If it is a problem from the pfc then i would buy something new probably.

If I shot you in the foot for free, would you not treat the wound?


I recommend you remove the PFC and then see what you can do about the idle. Once you get the idle sorted, then re-install (if you must) and if the problem returns you'll have your answer.