Trying to get a 2004 GTO 5.7L LS engine running on aftermarket harness to 12200411 PCM and a 2002 Camaro starter bin.
EDIT: Owner says motor is early or 2003 motor and has 24 tooth Crank Trigger Wheel. 2004 was supposed to change to 58 tooth.

First things checked were Orange wires to PCM and all good at 12 volt. Next up was Pink/Black wires with Key On and all were good at 12 volts except C1 Pin 61 shows no volts?

Traced the wire to CMP and looked up on wiring as CMP Sensor Low Reference. What is voltage supposed to be here?

Voltage at CMP is Red 12 volts, Pink/Black 0 volts and Brown/White signal 0 volts key on.

If this is not the issue can someone walk me through or has diagnostic sheet for no injector firing? Or possibly the 2004 GTO motor not same as 2002 Camaro calibration?