I found a premade harness that was on a running driving fiero.

it had a 3800 NA manual swap.

what are the differences in the engine harness.

I have a GTP and have worked with 3800 SC's for going on 7+ years. I honestly never paid much attention to the N/A harness...

There are a couple differences in the top end section but I forgot what they were.

I don't want this deal to fall through if I can make the harness work with just soldering a couple extra connections in.

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F.I.E.R.O. - Fantastically Imaginative Engineering Racing Object

I'm here to Help, just ask

www.fquick.com/GTXBULLET
Tech/Mechanic (Restorations, Modifications, and Service)
1988 Base Coupe (the show car ;-) )
2003 GTP Daily Driver
Size 13 Feet with Cracking Ankles and Tired Knees

Be fine , most part just add in wiring for bbv.

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87 GT
series 1 3800sc (7.597 @88.53 1.579 60ft)
(series II swap in progress)
85GT Northstar
86GT 3800 n/a

MAP sensor plug is different between the SC and NA motors.

This is the 3800sc MAP sensor plug


This is the 3800na Map sensor plug

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-Brian

My 87 GT Poly Suspension Upgrade (all pics) thread
Removing the roof panel
My HUD install thread

As long as the injector connectors are the same then just the MAP or you can use a series III MAP from an SC engine as the connector is the same and the BBV to be added if you want it. Other then that it is the same harness. Dan

Great! Thanks!

obviously running a bbv solenoid is considered a bad idea.

Injectors are different in ~00+ n/a wiring harnesses for future reference.

quote Originally posted by darkhorizon: obviously running a bbv solenoid is considered a bad idea. Injectors are different in ~00+ n/a wiring harnesses for future reference.

BBV is another thing I could live with out on my GTP.
I like simplicity

thanks for the injector note.

Selling the harness now though. Engine was sold.

quote Originally posted by gtxbullet: BBV is another thing I could live with out on my GTP. I like simplicity thanks for the injector note. Selling the harness now though. Engine was sold.

BBV or BBV delete is one argument that may continue on for a long while. Apparently it does provide some benefit in taking the load off the supercharger and engine under certain conditions, ( and can give a small increase in mileage), but I've been running without one for 3 years without any ill effects.

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" THE BLACK PARALYZER" -87GT 3800SC Series III engine, custom ZZP /Frozen Boost Intercooler setup, 3.4" Pulley, Powerlog manifold, Northstar TB, LS1 MAF, 3" Flotech Afterburner Exhaust, Autolite 104's, MSD wires, Custom CAI, 4T65eHD w. custom axles, HP Tuners VCM Suite.
"THE COLUSSUS"
87GT - ALL OUT 3.4L Turbocharged engine, Garrett Hybrid Turbo, MSD ign., modified TH125H
" ON THE LOOSE WITHOUT THE JUICE "