Powertrain
generic / SAE
P2A6B
Alternative Fuel Rail Pressure Regulator Pressure Sensor Circuit Low
Voltage on the inlet pressure sensor signal line of the alternative fuel rail pressure regulator is below the expected window. Wire shorted to ground or sensor short.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / numberA / 6B
Possible causes
- Signal wire shorted to ground high
- Internal sensor short medium
- Connector pins corroded - high contact resistance low
Inspection / repair
- Difficulty: hard
- DIY: shop recommended
- Estimated cost: 200–1500 €
- Estimated time: 1–6 h
- Component: alt fuel rail pressure regulator
- Component: alt fuel pump
- Component: afcm
- MIL / check engine light
- emissions-relevant
- limp mode possible
Sources
References
sae:J2012