OBD-II code · Powertrain (generic)
P00FA Turbocharger Outlet Pressure Sensor A Circuit Low
Turbo outlet pressure sensor A signal voltage below expected range. Boost control tracks commanded vs. actual manifold pressure; persistent deviation means wastegate, vanes, hose or actuator are not delivering the requested pressure.
Is it safe to drive with P00FA?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelySignal wire shorted to ground
- Less likelyConnector pins corroded - high contact resistance
- Less likelyHarness chafing through insulation
Symptoms
- Check engine light on
- Significant power loss / limp mode
- Possible blue or black smoke from exhaust
- Whistling or hissing sound from intake
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
- Turbo Outlet Pressure Sensor A, Sensor Wiring
Related codes
- P01FCTurbocharger Outlet Pressure Sensor B Circuit Low
- P00F7Barometric Pressure - Turbocharger/Supercharger Inlet Pressure Correlation Bank 2
- P00F8Turbocharger Outlet Pressure Sensor A Circuit
- P00F9Turbocharger Outlet Pressure Sensor A Range/Performance
- P00FBTurbocharger Outlet Pressure Sensor A Circuit High
- P00FCTurbocharger Outlet Pressure Sensor A Intermittent/Erratic
- P00FDBattery B State of Charge Performance
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.