I had the same problem. Had to take it to the dealership. "Make sure they have a Deisel Mechanic" mine didn't so had to take it to another dealership after being charged. But they were able to get her back to normal after a flash to my computer.
I was impressed as well, when I first installed the tune. Beware! About 3 months in is when all my ECU issues started. And getting someone on the phone is impossible. I've been trying to get someone to call me for over a week. Again! Just had to buy a new ECU And one of the guys said he'd write...
Well I have the SFT tune with the rally tune. It's not worth it. All I've had are problems sine I installed their tune. And can never seem to get someone on the phone. The mileage is BS no increase at all. When the tune isn't jacking up my ECU it's awesome. Powerhouse!!! But I'm in the process...
I have SFT tune in my 2016. Love it. But if I had it to do over again. I don't think I would do the DEF delete. The straight pipe causes a lot of soot blow back on tye tail gate. And my truck is white. Not cool! Also it smells pretty bad. In my garage. So I'll be going back to stage 1. Only the...
OK so I just did my delete a month ago. I love it. Got my power back and meg's back. Went to FL. For a family vacation. Got 30 mpg on the way down and 29 on rhe way back. the torque & Horsepower are insane. You won't believe it's a 6 cylinder. Get a pedal monster or pedal commander or something...