Powertrain
generic / SAE
P01C4
Fuel Pressure Sensor A Circuit Range/Performance
Fuel pressure sensor A reading implausible. Wiring faults of this kind typically come from chafing, water ingress at connector seals, or pin push-back — a wiggle test on the harness while the code is active often confirms the location.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number1 / C4
Possible causes
- Sensor reading drifted high
- Sensor element aged beyond calibration window low
- Sensor mounting loose - signal damping 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: 80–500 €
- Estimated time: 0.5–2 h
- Component: fuel pressure sensor a
- MIL / check engine light
- emissions-relevant
- drive cycle required
Sources
References
sae:J2012