Vetal

iTrader: (3)

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

slow67

iTrader: (2)

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.

Vetal

iTrader: (3)

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.

Vetal

iTrader: (3)

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

slow67

iTrader: (2)

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)

Vetal

iTrader: (3)

When I'll do this and everything will be working, I'll make a table for others to use

Vetal

iTrader: (3)

I realized that I don't have pins for PCM connector. Can they be purchased separately?

Vetal

iTrader: (3)

Does anyone know where to get the pins?

hotrodth

Call efi connection they may be able to send you in the right direction. Btw what did you do with the t56?

Vetal

iTrader: (3)

Sold it when there was real buyer. Not many are looking for T56 here

Vetal

iTrader: (3)

Damn, 4L80 diagram disappeared from TCI site, anyone else have good 4L80E pinout diagram?

Camaro Chris

iTrader: (1)

I have been looking for the same thing. cant find one anywhere

Vetal

iTrader: (3)

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

RARON455

iTrader: (35)

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.

Vetal

iTrader: (3)

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