OBD-II code · Powertrain (generic)
P02E3 Diesel Intake Air Flow A Control Circuit High
Diesel intake air-flow control A drive line stuck high — short to B+. Wiring faults of this kind typically come from chafing, water ingress at connector seals, or pin push-back — a wiggle test on the harness while the code is active often confirms the location.
Is it safe to drive with P02E3?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyShort to B+
- Less likelyConnector pins corroded - high contact resistance
- Less likelySupply wire pinched against B+ source
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 0.7–3 h
- Emissions test
- Likely to fail
- Parts involved
- Diesel Intake Throttle
Related codes
- P02E0Diesel Intake Air Flow A Control Circuit/Open
- P2393Diesel Intake Air Flow B Control Circuit High
- P02E1Diesel Intake Air Flow A Control Performance
- P02E2Diesel Intake Air Flow A Control Circuit Low
- P02E4Diesel Intake Air Flow A Control Stuck Open
- P02E5Diesel Intake Air Flow A Control Stuck Closed
- P02E6Diesel Intake Air Flow A Position Sensor Circuit
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.