P02A0 Diagnostic Trouble Code

P02A0 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 P02A0 diagnostic trouble code may include:

Lack of power
Faulty O2 Sensor
Poor acceleration
Rich or lean exhaust

Possible Causes :

Faulty IMRC actuator relay (if equipped)
A large air leak at or near the number one oxygen sensor would also cause a lean mixture.
Rough running engine due to misfiring plugs. Many engines have misfire codes to indicate the cylinder effected, such as P0307 for number 7.

Repair Processes :

Check to make sure they are not burnt or corroded. If in doubt, get some Electrical Contact cleaner at any parts store if cleaning of the terminals is needed. 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. Look at the plug wires to make sure they are not burnt or laying on the exhaust.

Process Tips

Diagnostic trouble code P02A0 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 P02A0.

Fortunately, P02A0 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

P02A0 Trouble Code For Specific Cars

P02A0 Steyr-puch 650 Lamp Turn Signal Left Circuit Failure
P02A0 Volkswagen Karmann Cheetah Right Front Wheel Pressure Reduction Performance Problem
P02A0 Ruston-hornsby A Ignition Run Circuit Short To Battery
P02A0 Volvo 440 SCP (J1850) Invalid or Missing Data for Electric Defrost
P02A0 Nissan Rogue Crankshaft Position Sensor B Circuit Intermittent
P02A0 Toyota 1000 Multi-faults - Bank 2 - With Low Side Shorts
P02A0 Crossley Regis Fuel Tank Pressure Relief Valve Malfunction