firebladeJJ

iTrader: (1)

I may have to mod mine later if thats the case, I'm in a time crunch to get it going to burn it to the ground.

strutaeng

I just saw this other thread: https://ls1tech.com/forums/pcm-diagn...-6l80-90e.html

https://www.holley.com/products/fuel.../parts/558-499

Will this do what this thread is about? 🧐🤔 I guess for that to work you also need to buy their V3 ECU? 💰💰💰

Edit: it says you can upgrade to the V3 system...

shakenfake

Holy crikey! That makes going Holley even more desirable lol

firebladeJJ

iTrader: (1)

yeah, it will, I could probably sell my t56 and get all that holly stuff and break even. It looks like a cleaner install compared to whats there but I dont know what all is involved with getting the holly terminator max x to work with all the truck stuff and not have a ton of wiring to do.

1BadAction

iTrader: (10)

Anyone want to buy a PCS TCM2650 with 90 harness? LOL. Brand new in box

firebladeJJ

iTrader: (1)

I emailed ZGP this morning to get some info about how to get the VVS signal out of the 2650 to the truck computer. Hopefully they come back with some useful info that I'll post here. Otherwise, I might be using the ABS wheel speed sensor on the front driver to get a signal to the VVS input that plugs into the transmission.

Alanis001

I’ve tried the left front speed sensor to the ecm to get the signal but did not work needle would only go half of actual speed then would go down and lights would set.

[QUOTE=firebladeJJ;5521524]

firebladeJJ

iTrader: (1)

yeah, I've been reading some of your post and other over on HPtuners forum and is not looking promising for now

Alanis001

only thing I can think of is to try and run wires from the internal speed sensor out to hook up to the wiring harness. If u have 4wd which most do they just hook it up to the transfer case speed sensor. If they get back with u lmk need to get it working to go get it retuned

firebladeJJ

iTrader: (1)

That may be another option, I still have my trans sitting on the shop floor right now.