Hi, all of you.

Happy to have this page as a resource!

I’ve got 2011 3500 6.7 4x4 drw truck with 162k miles and a stock 68RFE.

Deleted, that’s about it.

I had tunes from a few years ago done by Anarchy diesel and recently changed them due to excessive smoke, weird shift points, and lack of power when towing.

The new tunes were an attempt to see if changing shift points would keep me in the right range pulling in WNC mountains.

I added these new tunes, and the truck seemingly ran fine for two days pulling a 7500k box trailer.

All of a sudden, trans temp shot up to 212; trans only seemed to go from 1st to 4th and nowhere else.

I’ve never got above 196 for trans temps in the past.

I got it home, and it’s been dumping coolant out the front of the motor.

Codes:

P0191- Fuel rail pressure sensor circuit performance

P0871- OD pressure switch rationality

Is my trans shot?

Did I blow a water pump at the same time?

Are the tunes junk?

Where do I start?

Research so far suggests valve body, and my injectors are shot.

Thank you for any insight; this is above my pay grade!