B3711 Diagnostic Trouble Code

B3711 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 B3711 diagnostic trouble code may include:

Poor fuel economy
Possible spark knock (detonation / pre-ignition)
Misfire
Rich or lean exhaust

Possible Causes :

The Mass Airflow sensor will also cause this problem. Mass Airflow circuit malfunction.
Fuel with a large percentage of sulfur will clog the DPF quickly
A large vacuum leak would cause a massive amount of un-metered air to enter the intake manifold resulting in an overly lean mixture.

Repair Processes :

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

Process Tips

Diagnostic trouble code B3711 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 B3711.

Fortunately, B3711 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

B3711 Trouble Code For Specific Cars

B3711 Lotus Extreme Traction Control Motor Potentiometer Circuit Open
B3711 Alfa Romeo 155 ABS Outlet Valve Coil RR Circuit Open
B3711 Vauxhall Agila Power Window RR Motor Circuit Failure
B3711 Caterham Roadsport Door Driver Key Cylinder Switch Failure
B3711 Mercedes-benz Mcc Air Suspension Front Compressor Relay Circuit Short To Battery
B3711 Mg J4 Air Suspension RR Height Sensor Circuit Failure
B3711 Bristol 405 COURTESY LAMP OUTPUT Ckt Short to Battery