OBD-II code · Powertrain (generic)
P02E9 Diesel Intake Air Flow A Position Sensor Circuit High
Diesel Intake Air Flow A Position Sensor Circuit High: the signal voltage is above the expected range. Often an open circuit or a short to supply voltage.
Is it safe to drive with P02E9?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyOpen signal line
- Less likelyConnector pins corroded - high contact resistance
- Less likelySupply wire pinched against B+ source
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.5–2.5 h
- Emissions test
- Likely to fail
- Parts involved
- Diesel Intake Throttle Position Sensor
Related codes
- P02E6Diesel Intake Air Flow A Position Sensor Circuit
- P2399Diesel Intake Air Flow B Position Sensor Circuit High
- P02E7Diesel Intake Air Flow A Position Sensor Circuit Range/Performance
- P02E8Diesel Intake Air Flow A Position Sensor Circuit Low
- P02EADiesel Intake Air Flow A Position Sensor Circuit Intermittent/Erratic
- P02EBDiesel Intake Air Flow A Control Motor Current Range/Performance
- P02ECDiesel Intake Air Flow A Control System - High Air Flow Detected
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.