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LTX and LSX Putting LT1's, LS1's, and their variants into Third Gens is becoming more popular. This board is for those who are doing and have done the swaps so they can discuss all of their technical aspects, including repairs, swap info, and performance upgrades.

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Old 10-11-2009, 04:48 PM   #1
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More LT1 Wiring
Im using the 93 f body LT1 engine bay harness and the rest from my 92 rs 305 TBI.

I just want to the car to be able to run and drive, then Ill figure out the rest like the aldl stuff and get the speedo working. Im gona have the ecm sent to get the vats removed. But for now this is what I have and am hoping will get it running

For the LT1 harness
c100
PIN A-Power feed from injector fuse 9 going to a switched 12v source
PIN G-Power feed from ignition fuse 11 to a switched 12v source
PIN K-Power feed from injector fuse 10 to a switched 12v source

c210
PIN A-Starter 12v source to B4 C100 Starter wire(purple)
PIN B-ECM ground to ground
PIN C-ECM battery feed to A4 c100 constant 12v

C220
PIN J-Fuel Pump Relay Control to G4 of c100 Fuel Control gray wire
PIN F-Fuel pump feed too ????

C230
PIN G-Power feed from ecm ign fuse 5 to switched 12v
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Old 10-11-2009, 10:36 PM   #2
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Join Date: May 2004
Location: Kingston, Tn
Posts: 2,551
Car: 1987 GTA
Engine: LT1
Transmission: T56
Axle/Gears: 9 bolt 3.70 posi

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Re: More LT1 Wiring
Is the computer from a '93 as well? If it isn't,you'll have to swap it out for a '93, if it is then all you need is a chip burned to take the vats out, most end up using a '94-95 PCM and harness since the '93's are a totally different beast.
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Old 10-12-2009, 12:48 AM   #3
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Re: More LT1 Wiring
yes the ecu and harness are from the same car, so in coming from someone who has done this before it will start up the first time if its wired as I showed?
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Old 10-13-2009, 07:21 AM   #4
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Join Date: May 2004
Location: Kingston, Tn
Posts: 2,551
Car: 1987 GTA
Engine: LT1
Transmission: T56
Axle/Gears: 9 bolt 3.70 posi

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Re: More LT1 Wiring
To be honest, I don't know, it looks right but like I said, the '93 is a breed of it's own and was different than the others.
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Reload this Page More LT1 Wiring
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3rd, 94, body, bypass, camaro, ecu, engine, fuse, gen, injector, list, lt1, swap, vats, wiring, wiringcom
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