Powertrain
generic / SAE
P233C
Fuel Pressure Regulator C Control Circuit High
Same as P233A but with the control line shorted to supply - the ECU measures a high voltage that does not match the commanded duty cycle.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number3 / 3C
Possible causes
- Control line shorted to battery or supply high
- Connector pins corroded - high contact resistance low
- Supply wire pinched against B+ source 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: 120–450 €
- Estimated time: 0.6–2 h
- Component: fuel pressure regulator c
- Component: fuel rail
- MIL / check engine light
- emissions-relevant
Sources
References
sae:J2012