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
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References
sae:J2012