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Old 02-27-2017, 02:54 PM   #5
72MARIO
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Join Date: Nov 2000
Location: Huntsville Ontario Canada
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Re: 4l80 wiring question

Quote:
Originally Posted by uxdesigner View Post
I'm not sure how different the 4l80e is from the 4l60e but for the 4l60e you ONLY need the black/white wire on the larger plug and keep all 4 on the smaller plug. Based on your picture, you are very close and accurate, looks like you only have (1) extra pink wire that is not necessary.

What does the black white wire do for the pcm ? Would these 2 wires be all that's needed to provide the pcm info when the vehicle is being shifted into gear ? I just bought a new harness and it does not have the range selector switch plug. I would like to add it in
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1968 Suburban numbers matching all original truck now equipped with 6.0/4L80 on Accuair
http://67-72chevytrucks.com/vboard/s...d.php?t=625017
1967 C/20 6.0/4L80 Roofing Truck
1990 V2500 Suburban "Plow Truck"
2005 TAHOE DD
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