Powertrain
generic / SAE
P2A6D
Alternative Fuel Rail Pressure Regulator Pressure Sensor Circuit Intermittent/Erratic
The inlet pressure sensor signal of the alternative fuel rail pressure regulator drops out or jumps intermittently. Loose connector or noisy ground.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / numberA / 6D
Possible causes
- Sensor connector not seated high
- Noisy ground reference medium
- Connector with intermittent contact under vibration 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