Details on my truck: 2015 RAM 3500 with 6.7L Cummins 68RFE transmission.

Approximately 135K mileage

Following modifications:
DRD tune with MM3
FLO~PRO exhaust
EGR delete

Loaded the tune to my truck.

It started with no issue.

Installed EGR delete and FLO~PRO exhaust.

Afterward took it out on a drive roughly 7 miles round trip with o issues.

I came back, and at idle, the truck exhibited runaway diesel condition.

I couldn’t stop the engine.

This lasted approximately 30 seconds and engine shutdown (out of fuel).

I drained the oil, and it contained a mixture of diesel and oil.

Roughly 7 gallons total and replaced with fresh oil and filter.

Running my scanner, I am getting 2 codes, 00472 and 0088 (fuel pressure rail too high).

I replaced the fuel control actuator, and the engine will crank but will not idle.

Ray @DRD has been very supportive in answering all my questions.

I’ve also been working with experienced diesel mechanics.

He suggested I reinstall my stock tune and EGR items.

I would prefer not to do this if unnecessary.

Any suggestions would be greatly appreciated.