B2387 Diagnostic Trouble Code

B2387 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 B2387 diagnostic trouble code may include:

Poor acceleration
Cherry red hot catalytic converter
Possible spark knock (detonation / pre-ignition)
Rich or lean exhaust

Possible Causes :

Faulty IMRC actuator relay (if equipped)
A large air leak at or near the number one oxygen sensor would also cause a lean mixture.
A plugged converter will cause of host of driveability problems as well as set this code. A severely plugged converter will result in the inability to increase rpm when under load. Look for a code such as P0421 -- catalytic converter efficiency below threshold if the converter indicating a faulty converter.

Repair Processes :

You might continue by connecting the scanner to the vehicle diagnostic connector and retrieving all stored codes and freeze frame data. 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 B2387 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 B2387.

Fortunately, B2387 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

B2387 Trouble Code For Specific Cars

B2387 Ac 12 A/C Refrigerant Temperature Circuit Low
B2387 Riley 4 Hood Switch Circuit Short To Ground
B2387 Nissan Tino Cylinder #3 High To Low Side Open
B2387 Acura Mdx Iii ABS Inlet Valve Coil LF Circuit Failure
B2387 Mercedes C 270 ABS Inlet Valve Coil LF Circuit Short To Ground
B2387 Chrysler Valiant Exhaust Pressure Sensor High
B2387 Ford F150 Memory Set Switch Circuit Short To Battery