OBD-II reference

All 9.533 generic OBD-II codes, explained in detail.

Causes, inspection steps and sources — a comprehensive DIY archive. Created and maintained with love for the detail. Good luck and have fun!

Powertrain generic / SAE

P02FA

Diesel Intake Air Flow Position Sensor Minimum/Maximum Stop Performance

The diesel intake throttle position sensor does not reach the calibrated minimum or maximum stop value during a self-test sweep — typically sensor wear, mechanical stop misalignment, or a sticky throttle plate.

SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number2 / FA

Possible causes

  • Sensor or mechanical stop worn high

Inspection / repair

  • Difficulty: medium
  • DIY: possible
  • Estimated cost: 80–700 €
  • Estimated time: 0.5–3 h
  • Component: diesel intake throttle position sensor
  • Component: diesel intake throttle
  • MIL / check engine light
  • emissions-relevant

Sources

References

How to read OBD-II codes

The first letter names the vehicle system, the second digit distinguishes generic from manufacturer-specific, the remaining digits group fault area and number.

PPowertrain: engine, transmission, emissions
BBody: chassis trim, comfort, interior
CChassis: suspension, brakes, steering
UNetwork: CAN, control modules, communication