Do I need my factory harness?

1984 t-type

Murphy's Law
Jul 11, 2010
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I’m doing a LS swap and selling parts, do I need my 87 factory harness and computer or can I sell it ? Also are the lights and other non engine functions on their own harness or is it all mixed together ? If it matters or your just interested I’m doing a LSA on either a 6.0 or 6.2 fell free to chime in with other than don’t do it, I’m looking for tips and tricks may even do my first build thread. If I do it will be here and on YouTube thinking about getting into vlogging or however you say it lol
 
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MikeS

Active Member
Oct 30, 2012
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I've never done the swap, but from ones I've seen the original computer was still used to control some of the chassis stuff, and a standalone controller/gm computer from the swap vehicle used for the engine. One even had all the unused engine connection wires tied off to the side, so a 3.8 could be swapped back in. I'd be interested in the build thread, post up the title if its on youtube.
 

Fat Nat

Well-Known Member
May 25, 2001
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All you really need are the starter Sol wire the hot wires with the fuse links to light the fuse box. The rest is all cut out unless your still using powermaster and ac
 

MikeS

Active Member
Oct 30, 2012
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No.... you do not need the ECM and Harness. I am in the process of removing mine


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Share your setup when you can, I may go down this road in the future. Are you able to remove everything intact?
 

precizion818

Well-Known Member
Nov 29, 2007
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Greensboro, NC
I did this years again so I replaced it with another harness. This go around, I will plug the hole with a grommet.


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