Powertrain
generic / SAE
P0001
Fuel Volume Regulator A Control Circuit/Open
The ECU detects an open circuit in the control of fuel volume regulator A (often the metering valve on the high-pressure fuel pump). The actuator does not respond, so rail pressure cannot be controlled accurately.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number– / 01
Possible causes
- Wiring break or unplugged connector high
- Regulator solenoid coil open medium
- ECU output driver failed low
Inspection / repair
- Difficulty: medium
- DIY: possible
- Estimated cost: 80–600 €
- Estimated time: 0.5–3 h
- Component: fuel volume regulator
- Component: high pressure fuel pump
- Component: fvr wiring
- Component: fvr connector
- MIL / check engine light
- emissions-relevant
- limp mode possible
Sources
References
sae:J2012