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LQ4/9 Swap in GMT400 Vortec Tahoe - Wiring Suggestions

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Old 09-21-2015, 07:06 PM
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Default LQ4/9 Swap in GMT400 Vortec Tahoe - Wiring Suggestions
Picked up an OBS 2000 Tahoe Z71 GMT400 platform and want to do an LQ4 swap. I know I can repin the factory harness and add wires for the injectors and coils. Anyone have a link or diagrams? I assume EFI Live will be the only way to program the salvage yard LQ4 ECM with my truck's current VIN in order to pass inspection?
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Old 09-21-2015, 08:26 PM
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I am not responsible for them, but I have seen schematics here---> Wiring Harness Information
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Old 09-23-2015, 12:11 AM
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This is what I used to rework my harness.
LT1 Swap
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