hey i have a 97 imprez turbo 2000, i have modified it a bit and had a re-map. my idle sumtimes falls and i get the check engine light coming up, i have checked the hand controller on the powerfc and its shows thro highlighted with a low voltage. just thinking has it got anything to do with that. if so how can i fix it? what do i need?
thanks for helping
Cheers

 

I'm far from the expert on the Power FC, but doesn't THRO mean throttle position sensor? Doesn't the manual for the PFC/controller tell you what this parameter means?

If it is the TPS, then it sounds like the signal is dropping out (and so the ECU doesn't know the throttle angle). New one would be the cure.

 

i dont have a manual for the pfc, i was thinking it could be my maf sensor as when i was geting my car re-mapped i was told it could be a problem later on

 

any one else????

 

The obvious response: RTFM. If you don't have a manual, buy/borrow/download one.