Powertrain
generic / SAE
P01A4
Alternative Fuel Rail Pressure Sensor Performance
Alt fuel rail pressure sensor reading implausible.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number1 / A4
Possible causes
- Sensor reading drifted high
- Sensor element aged beyond calibration window low
- Sensor element contaminated by oil, soot or coolant low
Inspection / repair
- Difficulty: medium
- DIY: shop recommended
- Estimated cost: 100–600 €
- Estimated time: 0.5–3 h
- Component: alt fuel rail pressure sensor
- MIL / check engine light
- emissions-relevant
- drive cycle required
Sources
References
sae:J2012