Plug under driver's side
01-17-2024, 10:40 PM
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Car: 1987 trans am, 1988 Formula
Engine: 305 LG4, 305 LB9 TPI
Transmission: 700R4 in both
Plug under driver's side
Trying to remember what all connections I have. Can't seem to remember what this heavier gauge yellow purple wire and plug goes to.
01-18-2024, 01:02 AM
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Car: '89 Firebird
Engine: 7.0L
Transmission: T56
Re: Plug under driver's side
Large purple wire is typically part of the starter solenoid circuit?
Last edited by QwkTrip; 01-18-2024 at 01:10 AM.
01-18-2024, 10:12 PM
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Car: 1987 trans am, 1988 Formula
Engine: 305 LG4, 305 LB9 TPI
Transmission: 700R4 in both
Re: Plug under driver's side
Be nice to see that plugged into what it's supposed to be in a photo of an untouched original car as a reference
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John in RI (01-22-2024)
01-19-2024, 07:13 AM
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Car: 1987 trans am, 1988 Formula
Engine: 305 LG4, 305 LB9 TPI
Transmission: 700R4 in both
Re: Plug under driver's side
This car is a factory tpi automatic car. No manual transmission
01-19-2024, 09:09 AM
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Car: '90 Formula '88 GTA
Engine: 305 TPI 350 TPI
Transmission: T5 700R4
Axle/Gears: 3.42 10 Bolt 3.27 9 bolt
Re: Plug under driver's side
Don't have a reference photo for you but here's the diagram, others are correct this is for the starter circuit
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01-19-2024, 12:28 PM
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Car: Yes
Engine: Usually
Transmission: Sometimes
Axle/Gears: Behind me somewhere
Re: Plug under driver's side
The harness has all the wiring for both auto and manual, to keep production costs and chances for error down.
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John in RI (01-22-2024), vorteciroc (01-19-2024)
01-19-2024, 06:41 PM
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Car: Resto-Mod 1987 IROC-Z Clone
Engine: Alky fed L92 Vortec Twin-Turbo 6.8L
Transmission: My own built/ design 4L80M
Axle/Gears: Custom 12 bolt (4.10:1)
Re: Plug under driver's side
Some Cars were done that way and some were not....
It varied from Model-Year to Model-Year.
Damn Bureaucrats can't decide anything, and usually screw everything up!!!
It varied from Model-Year to Model-Year.
Damn Bureaucrats can't decide anything, and usually screw everything up!!!
01-19-2024, 08:46 PM
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Re: Plug under driver's side
My auto car had that wire. It was very convenient when I swapped it to a stick!
01-19-2024, 09:38 PM
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Car: 1987 trans am, 1988 Formula
Engine: 305 LG4, 305 LB9 TPI
Transmission: 700R4 in both
Re: Plug under driver's side
So from the sound of it this wire is just "there" in an auto car and more for manual transmission cars
01-20-2024, 10:17 AM
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Car: Yes
Engine: Usually
Transmission: Sometimes
Axle/Gears: Behind me somewhere
Re: Plug under driver's side
Look at the schematic. It tells you all you need to know. In a manual car, that one is for the clutch safety switch, which does THE EXACT SAME THING as the neutral safety switch in an auto car. In a manual car, the auto NSS connector can be found dangling under the console, just like that one is now doing in your auto car.
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