P02E9 – Diesel Intake Air Flow Position Sensor Circuit High

P02E9 Possible Symptoms

Engine Light ON (or Service Engine Soon Warning Light)

P02E9 Possible Causes

Faulty Diesel Intake Air Flow Position Sensor,Diesel Intake Air Flow Position Sensor harness is open or shorted,Diesel Intake Air Flow Position Sensor circuit poor electrical connection,Faulty Throttle Body Assembly,Faulty Engine Control Module (ECM)

P02E9 Description

The Intake Air (IA) Valve is a normally open valve and is only operated during a DPF regeneration. The position of the IA valve is controlled by the Engine Control Module (ECM). The IA valve system uses a position sensor located within the valve assembly to monitor the position of the valve. The ECM sets the OBDII code when then Diesel Intake Air Flow Position Sensor is out of factory specifications.