V6 to V8 wiring harness
Supreme Member
Joined: Jul 2000
Posts: 4,541
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Car: 1991 Corvette Coupe
Engine: L98
Transmission: 700R4/4L60 same trans different name
2 injectors
the 305 might have a dual fan set up
length of wires
location of sensors
might be easier to use the correct harness
might be easier to splice your existing harness
never tried both yet, so i cant say for sure
also the 86 will be a MAF harness
your 91 will be a SD harness
the 305 might have a dual fan set up
length of wires
location of sensors
might be easier to use the correct harness
might be easier to splice your existing harness
never tried both yet, so i cant say for sure
also the 86 will be a MAF harness
your 91 will be a SD harness
Joined: Mar 2000
Posts: 43,187
Likes: 42
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Find an uncut '86 TPI harness. It can't be that hard (look in the classifieds on this board, or post a wanted). You'll need the ECM as well.
Supreme Member
Joined: Jul 2000
Posts: 4,541
Likes: 2
Car: 1991 Corvette Coupe
Engine: L98
Transmission: 700R4/4L60 same trans different name
Originally posted by DAN_92RS
hey you don't have a v6 with TPI its a v6 has MPFI. and its probably easier to buy a brand new wiring harness from painless performance
hey you don't have a v6 with TPI its a v6 has MPFI. and its probably easier to buy a brand new wiring harness from painless performance
if your on a budget, it is possible
easier to buy a whole new harness, prolly
i looked into this from every angle, and it doesnt seem hard to modify
keep in mind, my harness is SD and i am keeping it SD
if you want a go from a SD harness to a MAF harness, then it will be more complicated......still doable though
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