Wiring
Thread Starter
Staging Lane
Joined: Mar 2012
Posts: 98
Likes: 0
Wiring It sure would be handy if there were schematics that showed what original wires to delete and what original wires to keep in an LS swap when using a purchased harness.
Starting on wiring my 72' Chevelle and using PSI harness but trying to decide what original wires can be eliminated.
Starting on wiring my 72' Chevelle and using PSI harness but trying to decide what original wires can be eliminated.
TECH Fanatic
Joined: May 2010
Posts: 1,081
Likes: 8
From: Atlanta, Ga
Take a look at www.lt1swaps.com , he has a pretty accurate wiring pinout to follow depending upon the PCM you are using.
It sure would be handy if there were schematics that showed what original wires to delete and what original wires to keep in an LS swap when using a purchased harness.
Starting on wiring my 72' Chevelle and using PSI harness but trying to decide what original wires can be eliminated.
Starting on wiring my 72' Chevelle and using PSI harness but trying to decide what original wires can be eliminated.
TECH Fanatic
Joined: May 2010
Posts: 1,081
Likes: 8
From: Atlanta, Ga
I think I understand your question now. Like ls171nova says, you can eliminate right back to the bulkhead plug the alternator, oil pressure, temp sender and possibly a couple of others. I also went to the inside and removed the unnecessary wires from the dash wiring. If you google the wiring diagram for your car you should be able to get a pretty good diagram.
Make sure to leave the main switch wire like he said as well. You can use that to activate the rest of the LS electronics. Once you get going the picture will develop, it really is not that hard to do.
Make sure to leave the main switch wire like he said as well. You can use that to activate the rest of the LS electronics. Once you get going the picture will develop, it really is not that hard to do.
