Will 89 computer/harness work on 92
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Junior Member
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Joined: Nov 2009
Posts: 93
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From: Humble, TX
Car: 1992 Trans Am Conv.
Engine: 305 TPI
Transmission: Auto
Will 89 computer/harness work on 92
Need another tpi harness and computer for my 305/ 350 tpi swap and wanted to know what year parts will work with my 92 TA?
Joined: Apr 2005
Posts: 7,736
Likes: 14
From: Not in Kansas anymore
Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Re: Will 89 computer/harness work on 92
85 -89 are MAF
90 -92 are MAP
ECM's are completely different
Anything is possible with enough time and $$$ but much easier to replace what you have with same system
90 -92 are MAP
ECM's are completely different
Anything is possible with enough time and $$$ but much easier to replace what you have with same system
Senior Member
Joined: Sep 2009
Posts: 516
Likes: 1
From: Downers Grove, IL
Car: 91 Z28 / 04 GTO
Engine: GMPP 350 TPI / LS1
Transmission: WC T5 / T56
Axle/Gears: 3.23 / 3.46
Re: Will 89 computer/harness work on 92
if you tear out your dash and convert everything to 85-89 style wiring then yes, is it worth it? Not really. if you need a harness pm me and well figure it out.
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