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cebra · 10-10-2018, 10:36 AM

It will be a while before I put the vintage air in, I need to do NV3500 swap, LS swap, and then next will be the air;I want to run heat in the meantime so I am doing away with all the AC wiring and converting to a heater harness only to run the blower.

I am unsure how you would reference wires if you didn't use the color, if they were all black for example it would probably take 2x as long to figure out and explain. I am first referencing the schematic then tracing each wire end to end prior to soldering it in to make sure they match so if anything new has been placed into the harness or colors have changed I will catch it there.

Once complete, I will draw up a new schematic in case anyone just needs to replace their fuse panel. The 1992 Blazer fuse panel has a lot of extra spaces (ECM, TOCM, etc) but the fuses on the 71 match pretty well to the 92 as far as feed wires/outputs.

10-10-2018, 10:36 AM	#9
cebra Registered User Join Date: Jan 2018 Location: Durham, North Carolina Posts: 782	Re: Building a new Wiring Harness It will be a while before I put the vintage air in, I need to do NV3500 swap, LS swap, and then next will be the air;I want to run heat in the meantime so I am doing away with all the AC wiring and converting to a heater harness only to run the blower. I am unsure how you would reference wires if you didn't use the color, if they were all black for example it would probably take 2x as long to figure out and explain. I am first referencing the schematic then tracing each wire end to end prior to soldering it in to make sure they match so if anything new has been placed into the harness or colors have changed I will catch it there. Once complete, I will draw up a new schematic in case anyone just needs to replace their fuse panel. The 1992 Blazer fuse panel has a lot of extra spaces (ECM, TOCM, etc) but the fuses on the 71 match pretty well to the 92 as far as feed wires/outputs.