Can anyone provide any insight? I would love to use my tuner, but it has been sitting on the shelf since this happened.

Did I do something wrong?

Is this the wrong place to ask these kind of questions?

Any help you can provide is greatly appreciated.

Thanks!

Zach wrote:Can you tell me which Tune you loaded here?

I loaded the 87 octane tune.

Can anyone offer any advice on why this tune acted the way it did on my truck? Or what can I do to use the inTune with my vehicle?

Thanks.

These are the two files in the tunes folder.

I'm sorry, I should have included that information.

The Avalanche 2500s all have the 8.1L engine and 4L85E transmission.

I just bought an inTune and was very excited to start tuning my truck. I've used a few different tuners on other cars, so I have a fairly good background. I updated the device on my desktop computer and went out to my truck to get the tune started. The only two tunes available were the DiabloSport ...