P02E9

Diesel Intake Air Flow A Position Sensor Circuit High

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Reduced engine power
Increased fuel consumption
Unstable idling
Check Engine Light Illuminates

Causes

Short circuit in the sensor circuit
Air flow position sensor malfunction
Wiring harness damage
Sensor power problems
ECU malfunction

How to Fix

Check the integrity of the wiring harness to the sensor
Measure resistance and voltage at the sensor
Check circuit grounding
Replace sensor if necessary
Reset error code after repair

Related codes

P02EA P0100 P0101 P0102 P0103