B2837 Diagnostic Trouble Code

B2837 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 B2837 diagnostic trouble code may include:

Malfunction Indicator Lamp (MIL) illuminated
Carbon Buildup on O2 Sensor
Poor fuel economy
Engine surge

Possible Causes :

Rusty exhaust systems, cracked exhaust manifolds or damaged or missing gaskets or donuts will cause air leaks.
An air leak forward of the DPF will change the sensor readings resulting in the code
Low fuel pressure caused by a clogged filter, failing fuel pump, failed fuel pressure regulator or clogged or leaking injectors.

Repair Processes :

It should be pretty close to battery voltage (12 volts). If not, then this is the circuit that has the problem. Find out what kind of system you have and verify that voltage to the fuel level sensor is present at the fuel pump wiring harness.

Process Tips

Diagnostic trouble code B2837 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 B2837.

Fortunately, B2837 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

B2837 Trouble Code For Specific Cars

B2837 Mercedes S 420 Air Assist Control Valve Range/Performance
B2837 Zeta Saloon SCP (J1850) Lack of Acknowledgment for Primary Id
B2837 Ferrari Scuderia Keyless Entry Circuit Failure
B2837 Nissan 1-tonner Chime Circuit Failure
B2837 Audi Rs2 ASM Control Circuit Range/Performance
B2837 Moretti 128 Battery Temp out of Range
B2837 Hudson Commodore Ride Control RR Shock Actuator Circuit Short To Ground