B20EA Diagnostic Trouble Code

B20EA 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 B20EA diagnostic trouble code may include:

Cherry red hot catalytic converter
Poor acceleration
The light may stay on or light intermittently as the DPF regenerates. The engine will be sluggish on acceleration.
Diminished fuel efficiency

Possible Causes :

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.
Defective ECU strategies or components will prevent proper regeneration
An air leak forward of the DPF will change the sensor readings resulting in the code

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. Now, clear the codes and test-drive the vehicle to see if the code is reset.

Process Tips

Diagnostic trouble code B20EA 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 B20EA.

Fortunately, B20EA is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

B20EA Trouble Code For Specific Cars

B20EA Nissan Grand Clutch Position Sensor Circuit Malfunction
B20EA Rolls-royce 100ex Hydraulic Pressure Unit
B20EA Zender Escape SCP (J1850) Lack of Acknowledgment for Audible Warnings
B20EA Renault Fluence Glass Break Sensor Failure
B20EA Toyota Avallon NVM RF HR Failure
B20EA Daihatsu Consorte Gear Shift Module Communication Circuit
B20EA Ford Excursion Memory 1 Switch Circuit Failure