PWM cooling fan(s) control using ECM

[parsonsj]

Love the updates and summary post. Thanks very much for that.

Originally Posted by Lou

HERE IS WHAT Dave is doing for us:

Installing pin out and a labeled wire for the PWM control module.
Installing pin out and a labeled wire for the GM A/C pressure sensor.
Installing pin out and a labeled wire for reverse lock out.

Just tonight I pulled my GMPP LS9 harness apart. I removed the bulkhead portion of the harness, and moved the wires over to the pedal, OBDII connector, etc. portion of the harness to go with all the other wires coming inside the car. I also removed the rear O2 sensor wires -- the GM instructions tell you simply that they are unused. Well, now they are coiled neatly on my workbench. And don't get me started on the coil/injector connectors. They are backwards, and GM includes a little whoop-di-do to fix it.

Sorry, I forgot where I was going.

Here's my question: can Dave or Mark or somebody post the pinouts for the ECM (E67) so I can add a

1. engine oil temp sensor, and
2. GM A/C pressure sensor, and
3. 2nd fan control wire.

Thanks!!