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1st, make sure you have the V2 scanner connected to the computer BEFORE starting the software.
2nd, turn key on BEFORE plugging in V2 to programming port on truck.
3rd, unclick high speed when...

Where can I find these OS files???
I know what you mean about off idle and smoke plumes now and then and i also get a loppy idle off throttle now and then but it clears up in about 5 seconds....

If the remote starter is connected to the Can network, unplug it. I have a remote starter on my truck and the key code sensor unit interferes with the scanner and must be disconnected on my truck......

Did you reprogram the trans as well?
Did it work before the updated tune was installed?
If so, probably a tune error.
Can you post the tune???

Not doing full flash just set points... All is well, it worked like it was supposed to do.
I have updated the TCM for the new tire size and the correct rear gear ratio and now it shifts much better...

Thank you for all the info... I do have all the latest firmware and software, just confirmed everything. I believe my problem is I had the software open before plugging the V2 into the computer. I...

I just bought EFI Live V2 last week and have downloaded all updated software and updated V2 flash scanner.
I made the 20-20 Tow tune and did have problems flashing ECM until I read the threads and...