B3349 Diagnostic Trouble Code

B3349 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 B3349 diagnostic trouble code may include:

Corroded or damaged connector
If the DPF is not cleared the ECU will revert to the "Limp Home Mode" until the situation is corrected
Lack of power
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
Rough running engine due to misfiring plugs. Many engines have misfire codes to indicate the cylinder effected, such as P0307 for number 7.

Repair Processes :

Look for damage to the tank indicating impact that may have damaged the fuel pump or sender. Pack the connector cavity with dielectric silicone compound (same stuff they use for light bulb sockets and spark plug wires) and reassemble.

Process Tips

Diagnostic trouble code B3349 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 B3349.

Fortunately, B3349 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

B3349 Trouble Code For Specific Cars

B3349 Citroen Osee Fuel Pump Resistor Switch Circuit Malfunction
B3349 Porsche 928 Fuel Delivery System Malfunction - Low
B3349 Mercedes Slk Air Bag Crash Sensors #1 / #2 Circuit Short To Ground
B3349 Suzuki Fronte
B3349 Piaggio Porter Engine Oil Temperature Sensor Low
B3349 Ford Freestar Mirror Driver Horizontal Feedback Potentiometer Circuit Open
B3349 Chevrolet Corsa Driver Side Crash Sensor Communication Fault (Non SCP)