Electrical 85 dash into an 89 harness

shroomhauler

New Member
Sep 28, 2004
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oxford,pa
I have an 85 lx that i used a complete harness from an 89 speed 5.0 donor car. By complete I mean from bumper to bumper. I did this way back in the 90's. I now would like to put the original 85 2.3 lx 4-cyl, with a/c, dash back in. How complicated would it be to integrate it into the 89 harness? Where besides the chilton manual diagrams could I find better wiring diagrams?
 
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You’ll want to hop on Ebay and buy the EVTMs for each vehicle. They are the best wiring diagrams available.

with that said, you aren’t going to mate and 85 2.3 L engine harness with an 89 dash harness. You are better off running a stand-alone engine harness and aftermarket EFI like a microsquirt/megasquirt. You won’t be able to run the 85 specific dash equipment though
 
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