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

P2280

Air Flow Restriction / Air Filter Restriction

The ECU detects an excessive intake restriction. Either the air filter is heavily clogged or an obstruction in the intake duct is reducing airflow below the expected level.

SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number2 / 80

Possible causes

  • Clogged air filter element high
  • Foreign object in intake medium

Inspection / repair

  • Difficulty: easy
  • DIY: possible
  • Estimated cost: 20–150 €
  • Estimated time: 0.2–0.8 h
  • Component: air filter
  • Component: intake duct
  • Component: mass air flow sensor
  • MIL / check engine light
  • emissions-relevant
  • drive cycle required

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