P02D2 Diagnostic Trouble Code

P02D2 is a kind of OBD-II Diagnostic P-Powertrain Diagnostic Trouble Code.

It is considered generic because it applies to all makes and models of vehicles, although specific repair steps may be different depending on your car model.

Symptoms

Symptoms of a P02D2 diagnostic trouble code may include:

Hesitation upon acceleration
Excessive exhaust leak
Rich or lean exhaust
The engine oil will exhibit dilution from the ECUs attempts to increase engine temperature. Some vehicles advance the fuel injection timing slightly after top center to afterburn a small amount of fuel to increase exhaust temperatures. Some of this fuel enters the crankcase. When the ECU determines the necessity to regenerate the DPF, the service life of the oil be shortened significantly

Possible Causes :

Defective ECU strategies or components will prevent proper regeneration
The Mass Airflow sensor is a hot wire that senses the volume of air entering the intake manifold. The computer uses this information to control fuel mixture.
Some aftermarket accessories and performance modifications

Repair Processes :

With the valve disconnected, the red voltmeter lead should be attached to the IMRC valve power wire and the black voltmeter lead connected to ground. Now, clear the codes and test-drive the vehicle to see if the code is reset. Look at the plug wires to make sure they are not burnt or laying on the exhaust.

Process Tips

Diagnostic trouble code P02D2 is not difficult to diagnose and repair. Thus, it always pays to have a qualified technician to look after your vehicle should this error code arise.

Diagnosing this code requires the engine to be in good running shape, without unmetered air entering the engine. If other codes that relates to misfiring condition, lean running or air entering the engine is present, then you must first fix those error codes before P02D2.

Fortunately, P02D2 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

P02D2 Trouble Code For Specific Cars

P02D2 Mitsubishi L200 Autolamp Sensor Input Circuit Open
P02D2 Kia Rondo Secondary Air Injection System Switching Valve A Circuit Malfunction
P02D2 Mini 1275 Anti-Theft Number of Programmed Keys Is Below Minimum
P02D2 Porsche 906 Front Wiper Select Switch "A" Short to Ground
P02D2 Peugeot Ion
P02D2 Ford Rs Mirror Passenger Left Circuit Short To Ground
P02D2 Lancia Megagamma Split Air #2 Circuit Malfunction