B0813 Diagnostic Trouble Code

B0813 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 B0813 diagnostic trouble code may include:

If the DPF is not cleared the ECU will revert to the "Limp Home Mode" until the situation is corrected
Corroded or damaged connector
Reduction in engine performance, especially at low RPM levels
Diminished fuel efficiency

Possible Causes :

Faulty IMRC actuator/sensor
A large vacuum leak would cause a massive amount of un-metered air to enter the intake manifold resulting in an overly lean mixture.
Fuel with a large percentage of sulfur will clog the DPF quickly

Repair Processes :

You might continue by connecting the scanner to the vehicle diagnostic connector and retrieving all stored codes and freeze frame data. 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. Look for damage to the tank indicating impact that may have damaged the fuel pump or sender.

Process Tips

Diagnostic trouble code B0813 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 B0813.

Fortunately, B0813 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

B0813 Trouble Code For Specific Cars

B0813 Datsun Laurel HO2S Heater Control Circuit (Bank 2 Sensor 1)
B0813 Proton Tiara Fuel Tank Temperature Sensor Circuit Malfunction
B0813 Skoda 420 Key Off Voltage Low
B0813 Lamborghini Marzal Solar Radiation Sensor Circuit Failure
B0813 Mazda Lantis Turbo Charge Relief Circuit Malfunction
B0813 Ferrari 488 Intake Manifold Runner Control (Bank 2) Stuck Closed
B0813 Abarth Otr 1000 A/C Post Heater Sensor Circuit Failure