P2BEF Diagnostic Trouble Code

P2BEF 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 P2BEF 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
If the DPF is not cleared the ECU will revert to the "Limp Home Mode" until the situation is corrected

Possible Causes :

A large air leak at or near the number one oxygen sensor would also cause a lean mixture.
Faulty IMRC actuator relay (if equipped)
Defective ECU strategies or components will prevent proper regeneration

Repair Processes :

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

Process Tips

Diagnostic trouble code P2BEF 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 P2BEF.

Fortunately, P2BEF is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

P2BEF Trouble Code For Specific Cars

P2BEF Buick Electra Cylinder 7 Contribution/Balance Fault
P2BEF Sbarro Gt Injection lump Fuel Metering Control "B" High (Cam/Rotor/Injector)
P2BEF Italdesign Twenty-twenty Seat Belt Switch Circuit Open
P2BEF Maserati Gt Transmission Fluid Pressure Sensor/Switch D Circuit Range/Performance
P2BEF Chevrolet Nomad EGR Calibration Low
P2BEF Nissan Cherry Climate Control Water Temperature Sensor Circuit Short To Ground
P2BEF Hansa 1100 Passenger Solar Radiation Sensor Circuit Open