Hey...i am hoping to get some help here...ever sinced i plugged in my pfc my ac has not really been working...i just tested it for leaks and it held vacuum for over and hour...so i don't think thats the problem, and i just filled up the r-12 so i know its not low in refrigerant. is there something with the PFC that i need to do to make it work properly? Thanks Nick

mine didnt work well when i put the PFC in. Oh well im just going to remove it anyways!

yeah...i remember you saying that at the BBQ...I have been without mine for about a year now...just wish someone knew why... https://www.nopistons.com/forums/pub..._DIR#>/sad.png

I think its just a bug in the PFC. I could be wrong about that, but its what i have heard

i've read that it could be a loose ground wire near the ecu. or maybe everyone looked over the obvious and forgot to turn the a/c on in the settings menu

I've heard it has something to do with the engine harness. The PFC doesn't like some of the older harnesses. People have replaced theirs and the A/C magically worked again.

reconnect the violet wire you cut on the harness during the install



it will fix it on older model cars

Ah yes!! I was about to say that!!

good info!

I didnt cut any wires when i installed my pfc...it came form sr motorsports and they said to just plug it in....?

Is anyone else having this problem?

Haven't hokked mine up yet... But I better not have paid a grand for a ******* **** pie.

you don't need to cut any wires if you buy the PFC from SR. they pull the pins out of the ECU, so its the same as cutting the 4 wires.

I have the write up at the shop. I can post it later.

silver ninety three : Plase do post it..thanks

All the other wiring on the harrness checks good? Could be something as simple as a bad ground. Good luck electrical problems are fun https://www.nopistons.com/forums/pub...1047683358.gif

what if on my 93 touring i didnt cut a violet wire???? in fact nothing really looks violet..i did cut a black wire with a red/purpleish stripe though....anyways i guess what i am asking is the wire different on a 93?

just take out the AC ... i just did in my tII its great

good question apexkw....mine is a 93 too...are the wires different, and since mine came form sr motorsports what can i do to attempt to fix the problem?

I read you disconnect AC IN and AC OUT wires and connect them to one another. This way the ECU has no control over your AC. I haven't done it but my a/c doesn't work and that is the fix suggested over at rx7club.com

Mine didnt work either but i pulled my AC so it's all good. I pulled power steering too so my engine bay looks clean and easy it's easy to work on https://www.nopistons.com/forums/pub...#>/biggrin.png

My Car is a JSPEC R1 and I got my PFC from XS ..my Ac blows hot air most of the time and If I hammer on the car, it suddenly blows cold for a little while .. then once I go back to normal driving .. hot again ??!!??!! https://www.nopistons.com/forums/pub..._DIR#>/sad.png

im having the same problem im gonna try this purple wire thing and see what happens

let us know how it works...