Possible Causes
WARNING: This page is about a different variant/trim than selected.
- Purpose of the Diagnostic Trouble Code(s)
- Monitoring of the rail pressure governor deviation for rail pressure too high
- Monitoring of pressure control valve operation
- Electrical Cause
- Yes
- Mechanical Cause
- Yes
- Control module cavity
- Circuit reference O_T_MEU
- Circuit reference O_T_PCV
- Monitor Description
- Negative rail pressure governor deviation is below a threshold and rail pressure governor is below a threshold
- Prioritized List of Possible Causes
- The powertrain control module measured a signal voltage above a specified range but not necessarily a short circuit to power, gain too high
- Other fuel pressure related Diagnostic Trouble Code(s)
- Fuel lines restricted
- Fuel lines leakage
- Fuel injector stuck open/leaking
- Fuel rail pressure sensor circuit short circuit to ground, short circuit to power, open circuit, high resistance
- Fuel volume control valve circuit short circuit to ground, short circuit to power, open circuit, high resistance
- Fuel pressure control valve circuit short circuit to ground, short circuit to power, open circuit, high resistance
- Connector is disconnected, connector pin is backed out, connector pin corrosion
- Fuel rail pressure sensor failure
- Fuel volume control valve failure
- Fuel pressure control valve failure
- Blocked fuel filter