05 5.9 cummins 6 speed wont start with starter but when you push start it it will run and runs fine until you push in the clutch and are at idle it stalls out wont start with key but can push start again run fine hooked up programmer read "fuel pressure regulator control" reset programmer to stock cleared code changed fuel filter new injecters 15k ago any ideas where fuel pressure regulator control is and where to get one? thaks for any info

 

on your cummins it will be called a fuel pressure limiting valve. and its on top of the fuel rail

 

What's the actual code that is coming up?

The pressure relief valve may not be the problem, more than likely it's the FCA (fuel control actuator).