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04 GTO Wires

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Old Aug 12, 2012 | 09:10 PM
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Default 04 GTO Wires

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
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Old Aug 12, 2012 | 09:13 PM
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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......
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Old Aug 12, 2012 | 09:23 PM
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Default 03-06 pinouts

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.
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Old Aug 12, 2012 | 09:40 PM
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n/m, the first post was enough. Gotta love these forums.
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Old Aug 12, 2012 | 09:52 PM
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Default diagrams like this



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Old Aug 13, 2012 | 06:46 AM
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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.

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Old Aug 13, 2012 | 07:18 AM
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I have the scans of the diagrams that 62n62 posted. PM me if you need them.
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Old Aug 13, 2012 | 01:16 PM
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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.
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Old Aug 13, 2012 | 03:22 PM
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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.
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