B2892 Diagnostic Trouble Code

B2892 is a kind of OBD-II Diagnostic B-Body 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 B2892 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
The light may stay on or light intermittently as the DPF regenerates. The engine will be sluggish on acceleration.

Possible Causes :

An air leak forward of the DPF will change the sensor readings resulting in the code
Rusty exhaust systems, cracked exhaust manifolds or damaged or missing gaskets or donuts will cause air leaks.
Defective ECU strategies or components will prevent proper regeneration

Repair Processes :

Now, clear the codes and test-drive the vehicle to see if the code is reset. 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. Oxygen sensors signal the engine management computer the amount of oxygen present in the exhaust, which is used in determining and controlling the fuel ratio.

Process Tips

Diagnostic trouble code B2892 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 B2892.

Fortunately, B2892 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

B2892 Trouble Code For Specific Cars

B2892 Fiat Brevetti Lamp Headlamp Low-Beam Circuit Failure
B2892 Volvo P1800
B2892 Bmw 1800 Camshaft Position Sensor B Circuit Malfunction
B2892 Daewoo Royale Gear 4 Incorrect ratio
B2892 Bmw Serie 6 Clutch Solenoid Circuit Malfunction
B2892 Paterson Model 41 Driver Side, Side mount Airbag Circuit Short to Vbatt
B2892 Bugatti Type 46 Cylinder 11 Injector Circuit Low