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The Ebay / Amazon (and some other BIG name higher priced suppliers, NOT just from China) are selling you a 1999-2002 Vortec 4.8/5.3/6.0 swap harness based on the 1999-2002 F body LS1 schematic and pinouts, NOT the Vortec truck. Do you need to re-pin these harnesses to match the Vortec schematic and pinouts? Should you? This is a video I cut out of another video I made to make it shorter, sorry if it is a little disjointed. In this video I explain why I will always re-pin an LS1 based harness to be used on a Vortec engine and PCM combination. The harness companies will tell you it doesn't matter because it still works and would rather sell a "one size fits all" harness so they can sell fewer part numbers and make more money. What you do is up to you. For even more LS wiring details take a look at my build videos, there are lots of wiring tests and information throughout the builds. Hope this helps!
Overview of my Ebay JY Performance 1999-2002 drive by cable harness and where to move the wires to change the harness from the LS1 to the Vortec design. Please read the description for updates.
• Ebay LS Swap harness o...