OBD-II code · Powertrain (generic)
P01C6 Fuel Pressure Sensor A Circuit High
Fuel pressure sensor A signal voltage above expected range. 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.
Is it safe to drive with P01C6?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelySignal wire open
- Less likelyConnector pins corroded - high contact resistance
- Less likelySupply wire pinched against B+ source
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
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.5–2 h
- Emissions test
- Likely to fail
- Parts involved
- Fuel Pressure Sensor A, Sensor Wiring
Related codes
- P018DFuel Pressure Sensor B Circuit High
- P01C3Fuel Pressure Sensor A Circuit
- P01C4Fuel Pressure Sensor A Circuit Range/Performance
- P01C5Fuel Pressure Sensor A Circuit Low
- P01C7Fuel Pressure Sensor A Circuit Intermittent/Erratic
- P01C8Fuel Rail/System Pressure - Too Low Bank 2
- P01C9Fuel Rail/System Pressure - Too High Bank 2
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.