97 c3500HD 454

[malibu795]

downloaded updated V7.5/V8 today.. still trying to get that mess sorted out.

system doesn't recognize ecm calibrations... stuff is supposed to be supported.... its not in the download
where is the calibration list/PID list to download

[malibu795]

Said flags

[SS2win]

Unfortunately the Vortec PCM's are not supported. Your best bet is to do the 0411 PCM swap with help from Lextech's repinning spreadsheet (send him a PM for info). It's not all that difficult to do and the PCM is much better than the 96-00 Vortec...

[malibu795]

Yet according to Cindy's stick.. it's supported just nothing new...

[SS2win]

L31 is the small block. You have L29

[malibu795]

Same ecm

[SS2win]

well I've worked on one or two b4 and this is the best information I have. someone else may know more! good luck

[malibu795]

Sorry not familiar with your background..

[SS2win]

No worries. I ran into the same thing. I can read my 350 vortec but the 454 wasn't supported. Other options include tunercat or the 0411 swap. There's a starter team for the 454 on this board if you decide to go with the 0411

[malibu795]

Probably go 411 swap later.. got to go rescue my other truck.. I was hopeful to pull the TQ management out, deactivate EGR and remove the post O2s before I left
Out


BTW
Where's the 454 stuff hiding at?