I've had an XCAL3 w custom tunes from justin at vmp tuning. I had him make me another in 91 octane performance zero ethanol. He has tried 3 times and each time truck goes to limp mode within a mile.

Thoughts? The other tunes have worked since 2009. He thinks SCT has a glitch in their software update which is separate from his tune.

 

Truck details, please.

 

Not sure why my sig isn't showing...

 

If you're on a PC, the full version, are you clicking the option box under each post?

 

Using my phone. Box got unchecked.