P02EC Diagnostic Trouble Code

P02EC 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 P02EC diagnostic trouble code may include:

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
Faulty or damaged wiring
Hesitation upon acceleration
Engine surge

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. Pack the connector cavity with dielectric silicone compound (same stuff they use for light bulb sockets and spark plug wires) and reassemble.

Process Tips

Diagnostic trouble code P02EC 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 P02EC.

Fortunately, P02EC is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

P02EC Trouble Code For Specific Cars

P02EC Mercury Grand Marquis Air Suspension LR Corner Up Timeout
P02EC Nissan Note Control Module Programming Error
P02EC Ford Corsair MAF Sensor Out Of Self Test Range./KOER Not Able To Complete KOER Aborted
P02EC Talbot Saoutchik Mirror Passenger Left Circuit Short To Battery
P02EC Tvr T440 Power Sliding Door Opened During Module Close Command
P02EC Brasinca 4200 Convertible Top Up/Down switch Fault
P02EC Benz 11 Blower Fan Speed Circuit Range/Performance