Repin ECU Harness Connector (Alternative Method)
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Budget Turbo Yukon XL 4L80 Conversion (Part 4): THE WIRING CONVERSION LIFE HACK! The BEST Way!
What happens here
An alternative wiring method involves modifying the ECU connector directly. Remove the brown wire from Pin 2 of the green/red PCM connector and the white wire from Pin 79 of the blue PCM connector. Then, insert the white wire into Pin 2 of the green/red connector. This method eliminates the need for additional wiring harnesses or running new wires through the vehicle's frame, offering a cleaner installation.
Goal: Modify the pin configuration of the ECU harness without new wires
Tools and materials
- Small Pick / Jeweler's Screwdriver — Releasing the lock tabs on the pins
- Wiring Diagram PerformanceTrucks.net — Identifying correct pins and their new locations
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