Hello,

I am going to do a 3800SC engine swap, but the part which scares me is the wiring. I am going to buy a pre made wiring harness, but I honestly know very little of wiring in cars. It's just a big mess of wires to me. I have been doing research in how to do wiring stuff but it still looks really hard.
Any tips or someone with the same problem who found out it isn't as hard as they thought it was?

Thanks!

Koert

A pre-made harness takes 5 minutes to plug in. You'll be fine

quote Originally posted by Koert: Hello, I am going to do a 3800SC engine swap, but the part which scares me is the wiring. I am going to buy a pre made wiring harness, but I honestly know very little of wiring in cars. It's just a big mess of wires to me. I have been doing research in how to do wiring stuff but it still looks really hard. Any tips or someone with the same problem who found out it isn't as hard as they thought it was? Thanks! Koert

As slammed has replied, there is no wiring with a pre-built swap harness. Plug the connectors in, reprogram the PCM and you are good to go. Now if the question is how is the harness made; it is a combination of the Fiero harness and the 3800SC harness. You would need to know how to run wires and work with pins, connectors and the crimping process that puts the wires on the connector pins. There are a few guys on this forum that make harnesses and they can also be found elsewhere.

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" THE BLACK PARALYZER" -87GT 3800SC Series III engine, custom ZZP /Frozen Boost Intercooler setup, 3.4" Pulley, 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 "

a "premade harness", very easy, the plugs only "Fit" on the correct places.

That's great! Thanks guys! Big relief

Who are you looking to make your pre-made harness?
Fieroflyer made mine and I have zero complaints.

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===Always trying to find time to work on cars===
Louis Duet
Baldwin, Long Island, NY
"My mind spins like helicopter blades." -G. Rossdale
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
"Blue" <= '85 Fiero GT
3800sc series 2 swap in progress--IT'S ALIVE !!!!!
~~~~~~~~~~~~~~~~~~~~~
"Boo" <= '81 Delorean DMC-12
VIN #5835
Stock PRV engine
Peugot 604 Intake manifold
Exhaust headers
Anti-3rd brake light

[This message has been edited by Lou and Blue (edited 07-15-2015).]

quote Originally posted by Lou and Blue: Who are you looking to make your pre-made harness? Fieroflyer made mine and I have zero complaints.

Has anyone had issues with FIEROFLYER?

I know there has been some unfavorable talk about him but I have to say he has been very helpful and attentive to me and I personally have zero complaints about him.

------------------
===Always trying to find time to work on cars===
Louis Duet
Baldwin, Long Island, NY
"My mind spins like helicopter blades." -G. Rossdale
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
"Blue" <= '85 Fiero GT
3800sc series 2
~~~~~~~~~~~~~~~~~~~~~
"Boo" <= '81 Delorean DMC-12
VIN #5835
Stock PRV engine
Peugot 604 Intake manifold
Exhaust headers
Anti-3rd brake light

[This message has been edited by Lou and Blue (edited 07-15-2015).]