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4.3L V6 wiring diagram

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Old Nov 24, 2025 | 12:09 PM
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Default 4.3L V6 wiring diagram

Has anyone got a wiring diagram/pinout for a 2002 4.3L V6? I'm building a harness to run a 4.6L Jeep stroker engine in a 1988 Comanche.
I tried running it on a 2004 P59 and the computer went bad. 3 of the injector wires started back feeding to the injectors. As much as 1.8 volts.
I want to try a P01, which I have 2 of. It's a much simpler computer and I think it'll do just fine, if I can find a pinout for it.
I'm looking at using the 12212156 OS, which I have the 4.3 version of.
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Old Nov 27, 2025 | 03:36 PM
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https://charm.li/Chevrolet/2002/S10%...d%20Diagnosis/

Give that a shot
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Old Nov 27, 2025 | 05:00 PM
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Originally Posted by Pocket

Thanks that's what I needed.
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