For a lot of you guys out there, like us, you're probably cash strapped and budget conscious. You may think that wiring is too challenging and difficult to tackle yourself, but if you follow along with us, you'll see that if you go slowly, and break each sensor down to its each individual components and wires, it's not as bad as it may seem.

Admittedly, wiring is not our favorite thing in the world to do. So, we went to our local LS guru and custom fabricator of all things GM LS, Nate Shaw of One Guys Garage, in Lakeville, MN. Nate has seemingly made a ton of these wiring harnesses to custom lengths, so it's something that almost comes natural to him at this point. His ultimate goal is to strive for an “invisible” wiring harness that is completely functional, but leaves car show visitors scratching their heads. So for that, we knew we had the right guy for the job.

We were able to snap a cheap wiring harness, from a LS truck engine and combine it with a few off the shelf parts. You'll be able to build yourself a custom sized wiring harness for under a $100. To be fair, this project will require a decent amount of free time. However, it's a great way to get into the LS engine family for the guy who has a lot of time on his hands, but not a lot of cash in his wallet. Be prepared to spend anywhere from 8-12 hours on the build.

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The best advice we can give to anyone right of the bat is to go slowly. The first time you do this job you may become lost. That's normal, so give yourself plenty of time, and have an entire crash carts worth of patience. We have included a spreadsheet with all the pin outs for the typical 1998-2002 Corvette wiring harness. Don't worry; the pin-outs haven't changed much over the years, which we really have to give GM credit for. If you completely strip the PCM connectors, like we have, and only plug in the parts you need, you'll be ready to rock in no time.

Parts List: Source: LS Truck Wiring Harness - Junkyard (1) OBD2 connector/port 829-12110250, GM #12129373 Mouser Electronics (4) OBD2 terminal 829-12129373, GM #12110250 Mouser Electronics (2) Terminal lock 829-12160437, GM #12160437 Mouser Electronics (8) Relay terminals 571-42238-2 (These are replacement Mouser Electronics terminals for the relay sockets (so you can use your own wires if desired) PCM Terminals (pack of 100 for extras) 18ga wires, GM# 12084912 Mouser Electronics 20-22ga wires, GM# 12084913 Mouser Electronics (1) Universal 30amp relay and socket from Dakota Digital. Summit part number DAK-RLY-1. One will power the whole engine harness. Additional relays required for fuel pumps, fans, etc. (1) Fuse block, Dorman 85668, Summit part #RNB85668

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