OBD-II code · Powertrain (generic)
P018A Fuel Pressure Sensor B Circuit
Generic electrical fault on fuel pressure sensor B (second sensor, e.g. low-pressure side or alternative fuel system).
Is it safe to drive with P018A?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelySensor failed
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
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Fuel Pressure Sensor B, Sensor Wiring
Related codes
- P01C3Fuel Pressure Sensor A Circuit
- P0187Fuel Temperature Sensor B Circuit Low Input
- P0188Fuel Temperature Sensor B Circuit High Input
- P0189Fuel Temperature Sensor B Circuit Intermittent
- P018BFuel Pressure Sensor B Circuit Range/Performance
- P018CFuel Pressure Sensor B Circuit Low
- P018DFuel Pressure Sensor B Circuit High
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.