i too have been having issues (a lot)
replaced 2,7 inj terminals 12k back 700, fuel filter housing 11k back 500, head gaskets 8 k back, replaced with studs
also have cold air, exhaust, turbo inlet and run the edge
after simular issues, i replaced the fuel filter, it helped, shimed the relief valve, still have code and fuel issues
HELP please

 

aj43az, you ever get it figured out?

 

Duttun , did you ever figure it out ? mines doing the same thing . Did the sensor fix it ?