wat sup guys i got a powerfc in my car currently and the idle is high and it constantly goin from 1000-1500 rpm all day long and is gettin very annoying can the power fc go bad?? or do i need tuning? the setup that i got is running the twin turbo together as if they were one non-seq and the car is running good it fast and it pulls pretty hard but the idling is the problem help me out guys tell me wat i should do ??

-steve

 

You need to provide more detail. How often does it occur, do you have a commander? Did you install the PFC? Did you go through the idle "learning" stages on the PFC?

I had the same problem. It only occurred when the car was warm. If you have the commander, mine occurred when the car hit 88 degrees on the button.

The car had an electrical load (ELD) constantly. When the car started warm, the idle shot up to 3K and then bounced from 1500-2000. It was the wires on my harness. They hadn't been clipped for the PFC. Once the 4 wires were clipped, car ran normal

Ensure you let the PFC learn idle for 10-15 minutes with no electrical load, and an elictrical load. Each stage, idle for 15 minutes.

 

Unplug the idle air control solinoid behind the upper intake manifold. its a small black cylider looking thing. Just unplug the white clip and see what happens. Sometime this cures the issue for alot of PFC owners. Also there are some tips in this forum if you spend some time browsing them. Its where i found that info out myself.

 

my car seem to occur when it is warm and it goes on constantly and FD_Newb_1974 wat step do u have i never when through any type the shop i got it done at did it and thanks guys i try wat u guys recommend and i will get back at ya thanks

-steve

 

any luck?

 

Cut the wires and problem solved. Good luck! You can do a search on this forum for the diagram. Actually it's in the sticky thread on the how to.

 

hell freakin yea i got it thanks... i had to mess with the idler under the throttle body and then adjust the other idle on front of the throttle body....thanks guys

-steve

 

Most of the time when you go to non-seq and you have a 1-1.5krpm oscillation it is a result of the PFC needing to be idle-calibrated again.

Do not bother troubleshooting until doing the 30 minute run-down again.