P00FCTurbocharger Outlet Pressure Sensor A Intermittent/Erratic
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- Needs a drive cycle to confirm a fix
- How the car detects it
- The turbocharger outlet pressure sensor A measures the pressure directly after the compressor, usually ahead of the charge air cooler; FCA fits it as a combined temperature and pressure sensor. Boost control and compressor protection use the value. P00FC covers short dropouts or jumps in the signal that are each too brief for the low or high code, or changes faster than real pressure can move. Comparable intermittent monitors count range violations per drive cycle – Ford's MAP check, for example, sets after 25 events. The FCA case for the sibling code P00F9 was a sensor not fully seated with an unlatched connector, exactly the kind of fault that produces erratic signals; heat and vibration near the turbocharger add to it. GM and Ford do not use this code family in their published summaries – they rely on the boost sensor ahead of the throttle (P0235–P0238) – so no manufacturer document naming exactly this code was found.
- What you may notice
- Check engine light on, possibly only after several drives
- Occasional hesitation or brief loss of power under load
- Fault comes and goes
- Likely causes
- LikelyConnector loose, not latched, or terminals corroded or spread
- PossibleHarness chafed or broken near the turbocharger (heat, vibration)
- PossibleSensor with internal dropouts
- RareEngine control module faulty
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Easy · Often possible to do yourself.Typical cost: €20 – €250
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.