Hey guys, doing a 5.3 swap on an 07 h3 with 3.7. I've got most everything figured out except for I cannot find the c3 connector at fuse block and the c125 body harness to engine harness connector pinouts. This is the last bit of information I need and I have searched all over and can not find them. Please help!
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5.3 swap...c125 and c3 connector pinouts needed
- Thread starter bozsrnd
- Start date
JPaul
Well-Known Member
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- 2,405
- Location
- Way up north, UT
H3 Hummer, Guide
This is my personal guide to building out the H3 Hummer for off-road. I’m not the person to ask questions about chrome, 20-inch rims, step-bars, lowering, and those things of the sort. In my …
schwarttzy.com
He has links to PDF's down at the bottom of the page. 2006, 2007, and 2008 wiring diagrams are there and they are complete and showing wire color codes and pin positions on the connectors. I'm not aware of any wiring changes for the 3.5/3.7 between the model years.