2016 2500.

I purchased the RAM used and has already been deleted.

I do not know what tune is in ECM now.

I have been researching which tuner I should install so I DO know what the truck is running.

All that being said, I am getting intermittent CEL U010C code.

It tends to go out/clear itself and also displays randomly.

The engine brake stops working when CEL is on.

Had truck to dealer recently for recall work; they noticed odd codes in ECM and suspect the current tune is creating issues.

Has anyone has similar experiences? I am leaning towards RaceMe Ultra.

Tow a boat, long distance highway trips without a lot of weight, and daily driver are how the truck is used.

Thank you!