When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Anyone done the method of running the 4L80e on a 4L60e tune? I've seen a few posts on tech but nothing detailed. It had something to do with wiring a relay into the harness to switch polarity on one of the shift solenoids.
BINGO. Been searching for hours, and that guy on Tech needs to give us a schematic on the relay wiring. From my understanding, you just use the rear vss sensor only, and some how add 2 relays to the current 60e wiring, and the 60e segment will run the 80e trans without a segment swap, and missing with the pcm up under the hood for the iss sensor.
I also read it can even control it better as far as converter locking and unlocking methods as well.
This is the route I am going to go with as well! Hope some sheds some insight.
fwiw i had to use both. the plug on the tailshaft and the plug up by the prndl, which is the vss, and wired it to pin 22 and 23.
Thanks man. It would probably make more sense to me if I had my trans sittin in front of me, but I don't so I have no reference. It's driving me in-f'n-sane
Thanks man. It would probably make more sense to me if I had my trans sittin in front of me, but I don't so I have no reference. It's driving me in-f'n-sane
when you get it, the plugs are identical, the plug closest to the front goes to the pcm, if not itll be shifting all funny, dont ask me how i know