P02ED
Diesel Intake Air Flow A Control System Low Air Flow Detected
Generic OBD-II
Real-world scan data
Seen in
118
scans in the past year
Found in
<0.1%
of scans
<0.1%
of scans that found faults
Appears alongside · share of P02ED scans
Figures reflect only diagnostic scans recorded through our own apps and tools. Cars are typically scanned because a symptom or warning light prompted it, so these counts describe our scan records — not the incidence of faults in any model, and not the quality, reliability, or safety of any vehicle. No comparison between manufacturers or models is implied. All trademarks belong to their respective owners; no affiliation or endorsement is implied.
Common symptoms
What you'll notice
- Inspect and clean the air filter
- Check for any obstructions in the air intake system
- Inspect and clean the Mass Air Flow (MAF) sensor
- Check for any leaks in the intake manifold
- Verify and recalibrate the Intake Air Temperature (IAT) sensor
Common causes
Most likely first
- Clogged or dirty air filter
- Faulty Mass Air Flow (MAF) sensor
- Leaking or cracked intake manifold
- Blocked or restricted air intake duct
- Faulty intake air control valve
How to diagnose & fix
Work through it in order
- Decreased engine power
- Rough idle or stalling
- Difficulty starting the engine
- Engine misfires or hesitation during acceleration
- Increased fuel consumption
Read & clear P02ED yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.