Powertrain
generic / SAE
P233D
Fuel Pressure Regulator B Solenoid Supply Voltage Control Circuit Open
The supply line that powers the solenoid of fuel pressure regulator B is open. Without supply the regulator cannot operate and the ECU cannot maintain rail pressure on this stage; sets when the controller sees no current flow even with the solenoid commanded on.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number3 / 3D
Possible causes
- Supply line open or relay defective high
- Fuse for regulator B supply blown medium
- Pin pushed back out of connector body low
Symptoms
- Check engine light on
- Hard start, no start, or stalling under load
- Power loss especially at high load or rpm
- Possible long cranking time
Inspection / repair
- Difficulty: medium
- DIY: possible
- Estimated cost: 80–350 €
- Estimated time: 0.6–1.5 h
- Component: fuel pressure regulator b
- Component: regulator b supply relay
- Component: fuel rail
- MIL / check engine light
- emissions-relevant
Sources
References
sae:J2012