P02FADiesel Intake Air Flow Position Sensor Minimum/Maximum Stop Performance
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- The diesel intake throttle learns the position sensor values of its end stops, as a Toyota patent describes for the closed stop at engine stop. P02FA means a learned end-stop value is implausible. Ford's 6.7 and 3.0 diesels check it once after each learning run and set the code when the learned minimum offset is outside ±10 (6.7) or ±6.7 (3.0) – Ford only evaluates the minimum stop. Typical causes are soot and oil deposits at the flap and stop, a worn or shifted sensor, mechanical damage or a replacement part that has not been learned. EGR control may be restricted.
- What you may notice
- Check engine light on
- Often no noticeable driving problems
- EGR control restricted, filter regeneration hindered
- Likely causes
- LikelySoot and oil deposits at flap and stop (EGR, crankcase ventilation)
- PossiblePosition sensor in the throttle unit worn or shifted
- PossibleFlap or shaft bent, stop worn, gear worn
- RareWrong or not learned replacement part
- RareEngine software
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Often possible to do yourself.Typical cost: €100 – €700
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.