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M6 -> 4L80E wiring info

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Old May 12, 2011 | 12:28 PM
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Default M6 -> 4L80E wiring info
I'm still in the process of swapping 4L80E and I can't find any info on wiring main transmission plug (I haven't got conversion harness). Where could I find this info or schematics or anything? Searched for an hour but could only find info about couple of specific wires
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Old May 12, 2011 | 06:38 PM
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Originally Posted by Vetal
I'm still in the process of swapping 4L80E and I can't find any info on wiring main transmission plug (I haven't got conversion harness). Where could I find this info or schematics or anything? Searched for an hour but could only find info about couple of specific wires
look in the stickies of the conversion/hybrid section. You can the pinout for the 4L80E, as it has been the same from 1993-present and match it up with the pcm pinout.
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Old May 13, 2011 | 01:49 AM
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I didn't find in conversion/hybrid too I was hoping maybe someone already posted instructions, as quite a few people went M6 -> 4L80, and as I understand you have to repin about 12 wires at PCM even if you buy conversion harness.
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Old May 13, 2011 | 11:30 AM
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In case someone else will need it...
http://www.tciauto.com/Products/Inst...part_one_2.htm

http://www.ls2.com/boggs/torques/99pinpcm.htm
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Old May 13, 2011 | 08:40 PM
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Originally Posted by Vetal
Thats it, just match each wire from the trans harness to the PCM. If you have a conversion harness, it should be labeled, mine was (from LSXtune.com)
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Old May 14, 2011 | 05:17 AM
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When I'll do this and everything will be working, I'll make a table for others to use
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Old May 14, 2011 | 09:57 AM
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I realized that I don't have pins for PCM connector. Can they be purchased separately?
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Old May 15, 2011 | 07:08 AM
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Does anyone know where to get the pins?
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Old May 15, 2011 | 08:29 AM
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Call efi connection they may be able to send you in the right direction. Btw what did you do with the t56?
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Old May 15, 2011 | 05:16 PM
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Sold it when there was real buyer. Not many are looking for T56 here
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Old Jul 4, 2011 | 04:45 AM
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Damn, 4L80 diagram disappeared from TCI site, anyone else have good 4L80E pinout diagram?
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Old Aug 7, 2011 | 02:48 AM
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I have been looking for the same thing. cant find one anywhere
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Old Aug 9, 2011 | 08:57 AM
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This is what I used for wiring, was the best diagram that I found color-wise, all wires were the same color as my plug
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Old Aug 13, 2011 | 08:06 AM
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Vetal,,, hope you get this sorted out,, I finished my swap a few weeks ago. I got the trans and all that in, and then I just took my car up to jake, and had him do all the harness and wiring work. (one advantage of being local) I could not be happier with the swap, wish I would have done it a while back.
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Old Aug 14, 2011 | 06:09 PM
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Wiring transmission was not that hard. Still have couple of things left to wire, like front VSS and park/neutral switch, park/neutral safety, reverse lights
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