xyster

iTrader: (1)

I have searched and searched with no luck. Is there a drawing of the wiring for a 04 GTO like the ones i have seen for the 98-02 F-Body's that show which wires that ned to be used to make the engine work? You know like the wiring diagrams that show the connector numbers and pin number/letters and where it is to be connected. Anybody please

aknovaman

iTrader: (7)

http://chevythunder.com/2004_gto_pcm_pinouts.htm

2004 gto harness is almost identical to the 2002 camaro but with slightly different colors. Pins are the same.

Fast enough response......

Sburch5887

http://lt1swap.com/2004vortec_pcm.htm

This one is a little easier to follow, its what I use to build all of mine, I have built several of these harnesses & now I know them inside & out thanks to this link. Good luck, if you have any questions, feel free to send me a message.

rotor vs. piston

iTrader: (3)

n/m, the first post was enough. Gotta love these forums.

62n62

iTrader: (17)

psiconversion

iTrader: (5)

Just an FYI, the GTO harness uses a Green/Blue PCM which has a few extra grounds and pulse width modulated O2 heaters. Still similar to the F-body as AKNOVAMAN stated.

Jon
PSI

attilahooper

iTrader: (4)

I have the scans of the diagrams that 62n62 posted. PM me if you need them.

69 Ghost

You can still use a 02 harness with a 04 GTO PCM but you will have to turn off the heater diagnostics on the PCM. Everything else including A/C, fans, etc works the same way and should be wired as such if needed.

xyster

iTrader: (1)

I just want to use what i already have which is a 04 GTO LS1 and harness. I have the pin outs of the ECM so my next question is what do I do with them? Do I cut the wires on the pins i need to use and connect power and grounds to those going into the ECM if so what about the other end of the wire I cut where is it going? I have the C206 connector but I dont see a C101 that a few people have talked about in other posts.