P03AF Mitsubishi Pajero OBD Code

OBD/2 P03AF error code description and symptoms.

Output Shaft Speed sensor circuit intermittent failure The output shaft speed sensor signal to the PCM is irregular or interrupted.
Harness connector not properly seated Harness intermittently shorted, or open Harness connector damaged OSS sensor damaged, or not installed properly Verify harness and connector integrity Verify OSS sensor proper installation.

One example of this would be when an automatic vehicle in placed in gear. To prevent the added drag from the torque converter and transmission from reducing the idling speed, the PCM will command the idle control valve to allow more air to enter the engine, while at the same time, adjusting the injector pulse width to inject more fuel to suit the increased amount of air. Note that the idle air control valve is closed by the PCM when the throttle plate is opened to prevent excess air from entering the engine.

P03AF Mitsubishi Pajero Error Code Repair Process :

If your air assist control valve range/performance check engine light is illuminated, it's best to take it in for diagnostic testing, which can feel like a hassle. Because while the lights vary in appearance from vehicle to vehicle, all have the same basic meaning: There's a problem with the car's emissions system. The on-board diagnostics system P03AF and engine control unit are in charge of monitoring a bunch of different air assist control valve range/performance, and if they get a reading that's a little out of whack, up pops the check engine light.

Common Causes of Mitsubishi Pajero P03AF OBD2 Code

A common cause of code P03AF is the failure of Air Assist Control Valve Range/Performance, but there are several other possible causes as well, such as ;

Camshaft Position Sensor harness is open or shorted
Engine Control Module (ECM)
Faulty select solenoid
Fuel pressure

P03AF is a kind of Powertrain Trouble Code

Powertrain of a modern automobile, comprising engine (with exhaust system), transmission, drive shaft, suspension and the wheels. In a motor vehicle, the term powertrain or powerplant describes the main components that generate power and deliver it to the road surface, water, or air.

Engine OBD 2 Codes website is a freeware resource center for engine trouble codes.

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P03AF Mitsubishi Pajero OBD Code

P03AF Mitsubishi Pajero Error Code Repair Process :

Common Causes of Mitsubishi Pajero P03AF OBD2 Code

P03AF code for other Mitsubishi cars