P02AD Diagnostic Trouble Code

P02AD 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 P02AD diagnostic trouble code may include:

Lack of power
Faulty O2 Sensor
Poor acceleration
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.
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 :

Look for missing ground strap or a rusty ground where the fuel tank is grounded to the frame. Check for damage to the wiring harness connector. It should be pretty close to battery voltage (12 volts). If not, then this is the circuit that has the problem.

Process Tips

Diagnostic trouble code P02AD 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 P02AD.

Fortunately, P02AD is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

P02AD Trouble Code For Specific Cars

P02AD Fiat Palio Lamp Turn Signal Rear Output Circuit Short To Battery
P02AD Mazda Capella Transmission Transfer Case Differential Lock-Up Solenoid Circuit Failure
P02AD Maserati Gt Transmission Fluid Pressure Sensor/Switch D Circuit Range/Performance
P02AD Reliant Gtc Gate Select Actuator Circuit / Open [left / right motion]
P02AD Lamborghini P140 Solenoid Relay # 1 Circuit Failure
P02AD Mercer 22 Air Suspension LF Corner Up Timeout
P02AD Boll Limousine Compressor Failure