Using a TCM-2650
#142
TECH Resident
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...
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...
Last edited by strutaeng; 04-24-2023 at 04:23 PM.
#143
TECH Veteran
Holy crikey! That makes going Holley even more desirable lol
The following users liked this post:
joom (04-24-2023)
#144
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.
The following users liked this post:
strutaeng (04-25-2023)
#146
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.
#147
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]
[QUOTE=firebladeJJ;5521524]
#149
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