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.
- Check engine light: Yes
- Emissions related: Yes
- Repair difficulty: easy
Common causes
Ordered by how often each turns out to be the cause.
- Clogged air filter elementCommon
- Foreign object in intakePossible
Parts involved
- Air Filter
- Intake Duct
- Mass Air Flow Sensor
P2280 is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.