Power FC PFC and A/C
08-21-03, 03:07 PM
#1
Full Member
Thread Starter
Join Date: Aug 2003
Location: Texas
Posts: 114
Likes: 0
Received 0 Likes
on
0 Posts
PFC and A/C
Ok I've searched and read dozens of threads, but I'm still confused. Why does the A/C sometimes work and sometimes doesn't? I couldn't tell from what I read ... is there a particular year or VIN range etc of cars that do and don't have the A/C problem once the PFC is installed?? I guess what I'm getting at is that rather than doing the "mod" which doesn't allow the ECU to control the A/C anymore, I'd rather mod something else to make my car like one of the cars where the A/C works like stock even after the PFC is installed. Does this make sense??
08-21-03, 04:20 PM
#2
Eye In The Sky
iTrader: (2)
Join Date: Feb 2001
Location: In A Disfunctional World
Posts: 7,895
Likes: 0
Received 114 Likes
on
66 Posts
It is a PFC design error which Apexi does give a **** about fixing, but some have had better luck with the newest version of the PFC.
Acts like a floating ground. Cars with factory AC seem less prone to this problem. My March 92 made R1 had the problem untill I install a new engine harness. This solved most of the problems but once in a while speed three will not cool.
It is something you will have to live with or fix. My 2 year old fix removed the AC controll out and away from the PFC so the PF would not control engine revs when the AC came off.
Either spend $800 for a new engine harness, use my fix, move to Canada, or get rid of the PFC.
Acts like a floating ground. Cars with factory AC seem less prone to this problem. My March 92 made R1 had the problem untill I install a new engine harness. This solved most of the problems but once in a while speed three will not cool.
It is something you will have to live with or fix. My 2 year old fix removed the AC controll out and away from the PFC so the PF would not control engine revs when the AC came off.
Either spend $800 for a new engine harness, use my fix, move to Canada, or get rid of the PFC.
08-21-03, 04:20 PM
#3
built my own engine
IMO, the directions from Apex'i are wrong, and you cut the ground wire from the a/c compressor switch
i just connected it back up (violet wire on my 93) and it worked great, except for fan speed 3
i just connected it back up (violet wire on my 93) and it worked great, except for fan speed 3
Trending Topics
Thread
Thread Starter
Forum
Replies
Last Post