21 documented codes across 88 real diagnostics.
Rail pressure, high-pressure pump, regulator and metering valve. P0087 (rail pressure too low) shows up with five different failure type bytes, which is the FTB doing real work.
Ranked by how often we actually see them
- P0087, Fuel rail/system pressure too low
- P0193, Fuel rail pressure sensor circuit high
- P0001, Fuel volume regulator control circuit open
- P0090, Fuel pressure regulator 1 control circuit
- P008A, Low pressure fuel system pressure too low
- P0252, Injection pump fuel metering control A range/performance
- P0089, Fuel pressure regulator 1 performance
- P0093, Fuel system leak detected, large leak
- P0002, Fuel volume regulator control circuit range/performance
- P0088, Fuel rail/system pressure too high
- P0095, Intake air temperature sensor 2 circuit
- P0003, Fuel volume regulator control circuit low
- P0148, Fuel delivery error
- P0190, Fuel rail pressure sensor circuit
- P000B, B camshaft position slow response, bank 1
- P0191, Fuel rail pressure sensor circuit range/performance
- P0008, Engine position system performance, bank 1
- P000A, A camshaft position slow response, bank 1
- P000F, Fuel system over-pressure relief valve activated
- P0192, Fuel rail pressure sensor circuit low
- P0230, Fuel pump primary circuit