Wiring harness question
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Joined: Mar 2003
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From: New Jersey
Car: 87 plane jane with gfx
Engine: 350 worked vortec head .515 .515 cam and 1.6 rockers and shorties for now til i can afford the supercomps
Transmission: super t-10 or t-5
Axle/Gears: auburn with 3.42 stock axles
Wiring harness question
Is an 85 wiring harness different than a 86-89 wiring, if so whats the major difference, and will it work for an engine swap
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Joined: Nov 2003
Posts: 462
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From: Ft. Leavenworth, KS
Car: 83 TA, 89 TTA, others
Engine: ZZ4 TPI, LC2 turbo v6
Transmission: several, mostly broken
'85 is somewhat different. Main differences were a lack of the MAF power and burnoff relays, and it used a different ECM.
You can use the '85 harness, but it will require some changes.
Luckily for you, Mike Davis documented the procedure for updating an '85 harness to work with the '165 ECM.
http://www.eecis.udel.edu/~davis/z28/ecm_swap/
You can use the '85 harness, but it will require some changes.
Luckily for you, Mike Davis documented the procedure for updating an '85 harness to work with the '165 ECM.
http://www.eecis.udel.edu/~davis/z28/ecm_swap/
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