P2280
Air Flow Restriction/Air Leak Between Air Filter and MAF Bank 1
Fuel & air metering
Generic OBD-II
Medium
What it means
P2280 means the engine is drawing air that bypasses the mass air flow (MAF) sensor, or airflow is restricted, somewhere between the air filter and the MAF. Because the MAF no longer measures all the incoming air, the fuel mixture is off — the engine can idle rough, hesitate, or lose power. It's almost always a loose or cracked intake duct, a bad clamp, or a clogged filter.
Medium
Can I keep driving? Usually yes, but the engine may run rough or lack power; fix it soon so the wrong air readings don't cause other problems.
Common symptoms
What you'll notice
- Check-engine light on
- Rough idle or hesitation
- Reduced power
- Possible whistling or intake noise from an air leak
Common causes
Most likely first
- Loose, cracked, or disconnected intake duct between the air box and the MAF sensorLikely
- Loose clamp or unseated air filter letting unmetered air inCommon
- Damaged or split air intake bootCommon
- Clogged air filter restricting airflowLess often
How to diagnose & fix
Work through it in order
- Scan and confirm P2280, then inspect the ducting between the air filter box and the MAF sensor.
- Check every clamp and joint for looseness, cracks, or splits; reseat the air filter.
- Smoke-test the intake to pinpoint an unmetered-air leak.
- Replace a clogged air filter.
- Verify the MAF sensor reads correctly once leaks are fixed, then clear and re-test.
FAQ
Quick answers
Is it safe to drive with P2280?+
Usually yes for short trips, but unmetered air upsets the fuel mixture, so the engine can run rough or lean. Fix it promptly to avoid follow-on lean or misfire codes.
Can I just clear P2280?+
It returns until the air leak or restriction between the filter and MAF is repaired. Find and fix the leak first.
Related codes
Often seen with P2280
Read & clear P2280 yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.
✓ Verified name — SAE J2012 / ISO 15031-6Guidance reviewed by OBD DashX