B3339 Diagnostic Trouble Code

B3339 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 B3339 diagnostic trouble code may include:

Malfunction Indicator Lamp (MIL) illuminated
Carbon Buildup on O2 Sensor
Poor fuel economy
The light may stay on or light intermittently as the DPF regenerates. The engine will be sluggish on acceleration.

Possible Causes :

Low fuel pressure caused by a clogged filter, failing fuel pump, failed fuel pressure regulator or clogged or leaking injectors.
Low fuel pressure caused by a clogged filter, failing fuel pump, failed fuel pressure regulator or clogged or leaking injectors.
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. Oxygen sensors signal the engine management computer the amount of oxygen present in the exhaust, which is used in determining and controlling the fuel ratio. If the scan tool has that capability, and the scan tool can operate the IMRC valves, then the problem is either resolved and a simple code clearing is all that's left or a new PCM would be called for.

Process Tips

Diagnostic trouble code B3339 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 B3339.

Fortunately, B3339 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

B3339 Trouble Code For Specific Cars

B3339 Aston Martin Db4 Air Suspension RR Air Spring/Shock Solenoid Output Circuit Short To Battery
B3339 Mercedes-benz Concept Air Suspension Compressor Relay Circuit Short To Battery
B3339 Aston Martin V12 Vanquish Air Suspension Warning Lamp Circuit Open
B3339 Chevrolet Utility Engine Coolant Sensor intermittent/ECT Sensor Intermittent
B3339 Nissan Patrol Cooling Fan 1 Control Circuit Malfunction
B3339 Calthorpe 12 Door Ajar Circuit Open
B3339 Jaguar Xkr Seat Driver Rear Down Circuit Open