Powertrain, generic · Fuel and air metering (injector circuit)
P02FA Diesel Intake Air Flow Position Sensor Minimum/Maximum Stop Performance
Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modePossible
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.
Likely causes
Soot and oil deposits at flap and stop (EGR, crankcase ventilation)
Position sensor in the throttle unit worn or shifted
Flap or shaft bent, stop worn, gear worn
Wrong or not learned replacement part
Engine software
Symptoms
- Check engine light on
- Often no noticeable driving problems
- EGR control restricted, filter regeneration hindered
Repair estimate
DifficultyMediumDIY possible
Parts and labour€100–700
Time0.5–2.5 h
Typical range across vehicles; the real cost depends on what the testing finds.
Parts involved
diesel intake throttle valvediesel intake throttle position sensor
Related codes
References: fordservicecontent.com, patents.google.com.