After putting on a new battery I was able to return the truck to stock successfully with no problems. I was also able to apply the 87 octane tune with parameters adjusted for tire size and speedometer regulator off. I attempted to run a log of 5 minutes worth of driving but after waiting 10 min the ...

Mean to add this for reference.

I am a mac user with intune for my 2013 gmc sierra 5.3L. Mods include K&N air filter and magnaflow muffler. Initially used tuner with Diablo sport tune. I wanted to switch to 87 octane tune and reset PCM to original backup prior to trying a new tune. I figured I needed a firmware update and tried ...

After getting the inTune for christmas I had some kinks to get worked out initially to get the correct firmware updated and backup registry uploaded to the device. uploaded my predator tune and was pleased with the results. I have since increased my tire size to 33" tires. I plugged my inTune in to ...

I received the intune as a Christmas gift. Followed all instructions and performed the original tune on my 2013 gmc z71 5.3L without difficulty. Then 2 days later I tried to retune to factory settings and the device freezes not allowing me to make any changes. Read some forums and downloaded the ...