Powertrain
generic / SAE
P233E
Fuel Pressure Regulator B Solenoid Supply Voltage Control Circuit Low
The supply line that powers the solenoid of fuel pressure regulator B is below the expected voltage with the regulator commanded active - typically a high-resistance feed, partial short to ground or weak relay contact.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number3 / 3E
Possible causes
- Supply feed has high contact resistance high
- Partial short to ground on supply line medium
- Connector pins corroded - high contact resistance 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
- MIL / check engine light
- emissions-relevant
Sources
References
sae:J2012