X15 2450 low power high fuel consumption

[Will144]

(11-20-2023 )tree98 Wrote:  The first thing I would do is put the original program back in and see if there's a noticeable difference.

I did ask the dealer if we could just to see if it made a difference. He didn't think they could do that. I do have insite is there a way I could do it? He mentioned going on a drive, recording data, then sending to oem to analyze ( sounds expensive).

[Bengy88]

Just pm’d you instructions on how to do this. He don’t think they can do that because he has absolutely no clue what’s going on with your truck or how to figure it out.