This is the harness from my last SC build, probably the last used harness Ill sell. If you're interested but its not exactly what you're looking for, shoot me a PM and Ill modify it to suit

$400 shipped

Specs:

Car, make, model, year:
90-92 Firebird/camaro

Original engine type:
TBI - V6/TPI also work

Original trans type:
Auto

Year of PCM being used:
99-02

PCM location:
Stock 3rd gen

PCM routing
Hidden under HVAC box (requires 2" hole cut)

Trans type:
T56

Intake:
LS3

Throttle Body:
Drive by cable

Injector style:
LS2/3/7 EV6

MAF type:
Truck 5 wire with external IAT. Can be put back for a standard install

AC:
4th gen low mount

Coolant gauge:
98 3 wire CTS

Alt:
Fbody 1 wire

Alt Location:
Stock Fbody

Number of fans:
Dual

Battery location:
Pass side

Relay center location:
Hidden under battery tray

Extras:
Firebird tach booster, will disconnect for camaros
Speedo pinned for TBI, but its one wire to move for TPI/V6
IAT is separate from the MAF, can be rejoined for a stock install
LS3 front MAP location, LS1 connector. Can easily be moved to the rear for a LS1/2 intake
Coil connector are moved to the rear of the intake and use custom harnesses - included
Fans have an override switch for track days. Off- automatic PCM control, ON- fans run continuous with IGN on
Cruise control wires are pulled behind the intake at an inline connector, wasnt finalized
LT1/S10 style HO2s

 

Pm sent

 

Sold

 

I think this the exact wire harness that I will need. I have a 1990 tbi auto and I am going to swap an lq4 or lq9, t56, run l92 heads or ls3, ls3 intake, fuel rail, injectors and a ls1 tbi. And an ls1 ecm. Is this a common harness that you to do?

 

Not really, but I can build it not problem

 

When it gets a little closer to spring time I hope to have an engine to work with. What part/parts of my existing harness would be required?

 

None, all of my harnesses are built from scratch. This was the last used one

 

It would have a been almost perfect. However today I came across a 02 LS1 T56 engine harness with the ECM for $200. Is this a good deal and if it is would it and my existing harness be all that you would need from me to start making a harness?

 

It is a good deal if you're doing the wiring your self. I dont modify used harnesses anymore. Everything out of my shop is new

 

I have an '86 IROCZ that I am building an LS1 for with a 700R4 that I am going to need a wiring harness and pcm for, everyone tells me you are the man to see so here I am. Can you help me?

 

I can. PM me and we'll go from there