2010 Silverado 6.2 L

[fully81]

I just bought a Trinity programmer for my 2010 silverado 1500 with the 6.2L and I installed the diablo tune and took it down the road a quarter mile and the service stabilitrak came on and the speedometer was fluctuating periodically for 0 to 60 no matter what speed I was going and the shifting seemed extremely hard and you could here to rearend slam. Did I do something wrong or is just a problem that anyone else is encountering?

[mikel]

Thats a new one tome, try restoring the backup and see if it does it again.

[RICH6ROB]

I just bought a Trinity programmer for my 2010 silverado 1500 with the 6.2L and I installed the diablo tune and took it down the road a quarter mile and the service stabilitrak came on and the speedometer was fluctuating periodically for 0 to 60 no matter what speed I was going and the shifting seemed extremely hard and you could here to rearend slam. Did I do something wrong or is just a problem that anyone else is encountering?

[fully81]

I restored the backup and reinstalled the diablo tune and now it works fine. But I noticed if i keep the trinity plugged in the it will do it once in awhile but when it does it i push the connection wire into the trinity and hold it for awhile and then it stops so i dont know if something is wrong with the cable that it isnt holding or what. And when it was writing the computer i had to hold the cable into the trinity otherwise it would say it couldnt read the pcm.

[mikel]

Make sure the cable connects and clips in all the way on both sides of the Trinity.

[fully81]

Can I use the program for the GMC Sierra 6.2L instead of the Silverado 6.0L?
And are they coming out with some tune for the 6 speed tranny?

[johan]

Yes you can, we are working on the tcm support for these applications as well, no eta on that though.