[glock35ipsc]

Just for refernce, this is what is left on my harness after W4M reworked it:

2006 Silverado harness, starting at PCM connectors and moving out from the PCM -

BARE WIRES:

White - To tach, 4cyl signal
Green/White - To fuel pump relay control, 12v +
White - To brake light switch, cruise
Purple - To brake switch, for TCC
Green/White - VSS, to speedo
Green - To OBD II connector, in vehicle
Brown/White - To SES light

3 Red wires - Each to a 12v key-on fused power source
1 Orange wire - To a 12v battery fused power source
1 Purple wire - To starter solenoid (tie trucks starter wire to this one, or leave it alone and use trucks wire to the starter)

CONNECTORS:

• Electric fans (high and low, I will have to supply the ground)
• TAC module
• Wires for cruise: Dark Blue, Gray/Black, Gray
• DS coil packs
• DS injectors
• Alternator
• Coolant temp sensor (front of left head, for PCM)
• Ground
• Starter solenoid (see “1 Purple wire” above)
• Crank sensor

MAIN HARNESS SPLITS IN TWO HERE:

One:

• MAP sensor
• Passenger side O2 sensor, front
• MAF
• PS coil packs
• Ground
• PS Injectors
• Throttle body

Two:

• Knock sensor harness on intake manifold
• Oil PSI switch (behind intake manifold, for PCM)
• Cam sensor
• Ground
• Driver side O2 sensor, front
• Transmission, drivers side
• Transmission, VSS, tailhousing
• Transmission, passenger side