I have a 2011 I am trying to tune as a favour and I am at a roadblock. Originally my friend paid a shop to tune the truck, it worked fine for about month than he started getting codes coming up. The shop he took it to couldn't fix it and eventually told him to pound sand essentially.
I got the truck running and driving fine with no codes and no dead pedal or any other issues but after a while it will get a reduced power message and the speed will be limited to 90kmh ish. No matter what I set the values to I can't get rid of the limiter and I don't know how to get rid of the message. It doesn't show any codes when I scan it though.
Any help would be greatly appreciated. Also willing to compensate for your time if need be.
Thanks,
~Chad