Powertrain
generic / SAE
P02E9
Diesel Intake Air Flow A Position Sensor Circuit High
Position sensor above upper plausibility — open signal or 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.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number2 / E9
Possible causes
- Open signal line high
- Connector pins corroded - high contact resistance low
- Supply wire pinched against B+ source low
Inspection / repair
- Difficulty: medium
- DIY: possible
- Estimated cost: 60–500 €
- Estimated time: 0.5–2.5 h
- Component: diesel intake throttle position sensor
- MIL / check engine light
- emissions-relevant
Sources
References
sae:J2012