i have a 2011 Tahoe, stock tune other than DOD disable. Ran fine when i decided to go back in and make a few adjustments from a tune i found in the repository and flashed it and it will not start, went back and put the stock tune in and still won't start so any advice would be appreciated, thanks.
I would suggest opening a support ticket https://support.hptuners.com/index.php?/Tickets/Submit
It doesn't have to be perfect, it just needs to be done in two weeks...
A wise man once said "google it"
ok, thanks.
What version of HP Tuners are you using?
I had the same problem with an earlier version. The BCM stopped communicating after I flashed the ECM.
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