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· Premium Member
2007 Klassic CCSB 2500HD. Six-gun w/speedloader, iDash, and EFILive.
1,362 Posts
Discussion Starter · #1 ·
The continuing firmware updates for it are removing LBZ and probably LLY functionality, possibly newer trucks too. It makes sense when they have much newer vehicles they need to fit in a limited software package size, but it is a dirty little secret they seem not to be publishing.

I downgraded my firmware because I no longer had oil pressure or instantaneous fuel economy PIDs (so to speak). I like watching what my foot is doing to my wallet on longer trips.

Customer support has the old firmwares if you ask. I've got a couple.

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