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View Full Version : P11 02-05 Ecotec 2.2ltr


GAMEOVER
January 9th, 2011, 03:45 AM
I've built some stand-alone harness's using the stock Computer but i'm having problems with the fans turning on when they are supposed to be off...I've tried the Hi & Low outputs to the relays but fan's will turn on when they want to or turn on as soon as motor is "ON"....
GAMEOVER
January 25th, 2011, 01:49 PM
I've checked DTC's, no codes at all...
01Blackerado
March 14th, 2011, 10:43 PM
Did you ever find a fix for this? I know the guys over at HPT have fixed it in their OS, so Im wondering if EFi has done the same!?
GMPX
March 14th, 2011, 10:55 PM
We have not looked any further, development on this PCM has pretty much stopped.
01Blackerado
March 14th, 2011, 10:58 PM
Ok so does that mean im pretty much screwed ? I have a 01 silverado, is there another PCM i can try to use that will actually function properly with EFans?
ScarabEpic22
March 15th, 2011, 07:16 AM
Ok so does that mean im pretty much screwed ? I have a 01 silverado, is there another PCM i can try to use that will actually function properly with EFans?

Im pretty sure no 01 fullsize trucks used the P11 PCM...there are a few ways the LS1 PCM can be setup though to fix this.