Good luck man, I'm interested to know whats going on....it's such a pain since they went to 2 different modules....

 

Dig around over on LS1truck. Redheartbeat has done this swap. You need a PCM out of a vehicle that originally had a 6l80e. He used one out of an express van.

 

Negative Justin. Greg did the 4l80e swap

 

^^^
im the 1st thats documented this an the guys that did it before had a complete pull out of everythimg plus the NMC5 or w.e hasnt documented anything nor has he been active on here

 

**** that's right.

 

well imma call EPS today and see what Geoff says, then imma call Furtal and see what Allen says (if he answers lol) and if none of them can help me, im going to call the dealer and explain what i did, and what i want them to do i bet they are going to be so damn confused as to wth i cant believe you put a 6.2 in your truck muchless a 6L80e

 

good luck... this swap is beating the hell out of your wallet

 

nah im still in my price range as of now. i dunno about the new tuning or dealer stuff

 

I can understand the modules being write-protected, at least in terms of the end user potentially doing some shady stuff with theft/chop shops, (like what I was telling you about the gauge clusters) but there must be a way to overwrite it/wipe the TCM and start over. The parameters cannot be that linear that only one TCM will work with that one transmission it was mated to.

Worst case you might have to get a new TCM, which I'm assuming would come blank and the dealer could flash the proper tune.

 

nah found out today from Geoff. WORSE CASE, id have to take it to the dealer and they have to revin it. unless the ecm is fried (doubt it) the truck will crank up and but kills right away bc of the mismatch vins lol.

geoffs gonna scan the ecm if it wont read then imma go to the dealer. i messed up by tryin to install an 09 tune vs the 08 tune. i need a 08 6.2/6spd tune basically. im calling in sick Wed, and ill keep yall posted of whats going on. oh an a TCM is COSTLY