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Old 05-30-2016, 06:00 PM   #1
bautino95
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whats this wiring plug for?

1971 c10 402 with a/c. I found it wrapped up behind the distributer after doing a hei swap. Looks like 2 brown wires, 1 with a white strip on one side and i think a blue wire for the other side of the plug. I cant find anything unpluged and everything seems to work. Thanks
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Old 05-30-2016, 06:04 PM   #2
tdangle
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Re: whats this wiring plug for?

AC Compressor clutch?
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Old 05-30-2016, 06:11 PM   #3
bautino95
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Re: whats this wiring plug for?

Nice try, but no. A/c clutch has its plug on it and works. Im kind of stumped. Ive tried looking at wiring diagrams but cant find a plug end with 2 browns and a blue.
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Old 05-30-2016, 06:43 PM   #4
dazza
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Re: whats this wiring plug for?

I think its for TCS (transmission controlled spark), emissions control connecting to your transmission, only allowing vacuum advance in high gears.
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Old 05-30-2016, 06:49 PM   #5
bautino95
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Re: whats this wiring plug for?

Huh ok, I'll go look under the truck on the tranny, its a th400 btw
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Old 05-30-2016, 06:54 PM   #6
bautino95
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Re: whats this wiring plug for?

Never mind. I just looked up what a tcs does. I guess someone deleted it and taped up the wires. I'll just tape them back up.
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Old 05-30-2016, 07:14 PM   #7
dazza
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Re: whats this wiring plug for?

If in fact that is what they are for, they don't need to be hooked up even if you could.
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