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Neutral Safety Switch Wiring

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Old Sep 7, 2017 | 05:08 AM
  #1  
TEEZER TA's Avatar
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From: Fort Erie, Ontario
Car: 1986 Trans Am
Engine: 383 Stroker
Transmission: LT1 T-56
Axle/Gears: 3.73
Neutral Safety Switch Wiring

I am doing a T56 conversion on my 86 Trans Am which was originally automatic. My question is that when I was installing my manual pedals I noticed a pigtail with a heavy yellow and purple wires under the dash not plugged into anything?Is my car wired for manual NSS also and can I wire my NSS from that plug? From what I have read on other conversions is everyone splices into the wiring from the shifter. I just thought it would be easier and a cleaner install using that plug? Any feedback would really be appreciated!

Thank you
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Old Sep 7, 2017 | 06:17 AM
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Re: Neutral Safety Switch Wiring

Yes that is the plug for the clutch safety switch. Just plug it in.
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Old Sep 7, 2017 | 06:52 AM
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From: Fort Erie, Ontario
Car: 1986 Trans Am
Engine: 383 Stroker
Transmission: LT1 T-56
Axle/Gears: 3.73
Re: Neutral Safety Switch Wiring

Thank you very much Sofa for the quick response!
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Old Sep 7, 2017 | 02:29 PM
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From: Fort Erie, Ontario
Car: 1986 Trans Am
Engine: 383 Stroker
Transmission: LT1 T-56
Axle/Gears: 3.73
Re: Neutral Safety Switch Wiring

Why is the wire gauge on my car for the NSS a lot heavier than the plug that came with my 4th gen pedals for the NSS? Just want to make sure because I don't want a fire.

Last edited by TEEZER TA; Sep 7, 2017 at 02:30 PM. Reason: Forgot something
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Old Sep 7, 2017 | 05:18 PM
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Re: Neutral Safety Switch Wiring

Probably because the 4th gen solenoid doesn't draw as much current as our old Stone Age thing, and all that expensive copper isn't needed anymore.
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Old Sep 7, 2017 | 06:05 PM
  #6  
TEEZER TA's Avatar
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From: Fort Erie, Ontario
Car: 1986 Trans Am
Engine: 383 Stroker
Transmission: LT1 T-56
Axle/Gears: 3.73
Re: Neutral Safety Switch Wiring

I'm sure it draws current like it draws money out of my wallet...lol! So do you think those small wires should be fine or should I try and take apart that plug and soldier them to the connectors?
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Old Sep 7, 2017 | 06:50 PM
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Re: Neutral Safety Switch Wiring

Just FWIW, not all auto cars are wired for the NSS at the clutch pedal. For example, in 1991, TBI cars are, V6 and TPI V8 cars aren't.

Just so no one reads this thread and goes tearing apart their car looking for something that usually isn't there...
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Old Sep 8, 2017 | 07:05 AM
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Car: 1987 SC/1985 TA
Engine: 350/vortec/fitech
Transmission: T56
Axle/Gears: 3.27 9-bolt
Re: Neutral Safety Switch Wiring

as I recall the fourth gen (at least V6) wiring diagram showed the NSS energizing a relay that also tied in anti-theft. I did the swap with a set of 4th gen pedals and the NSS wiring was like 22-24 small.

I installed a relay that the switch energized. simple enough.
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Old Sep 13, 2017 | 07:41 PM
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From: Fort Erie, Ontario
Car: 1986 Trans Am
Engine: 383 Stroker
Transmission: LT1 T-56
Axle/Gears: 3.73
Re: Neutral Safety Switch Wiring

Thanks nag, for your advise! I had my brother who is a Avionics Electrical Technician take a look and he said it would be a good idea to add a relay. So he installed it for me, all good!

Last edited by TEEZER TA; Sep 13, 2017 at 07:44 PM. Reason: Mistake
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