B1618 Diagnostic Trouble Code

B1618 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 B1618 diagnostic trouble code may include:

Faulty PCM
The light may stay on or light intermittently as the DPF regenerates. The engine will be sluggish on acceleration.
Poor acceleration
If the DPF is not cleared the ECU will revert to the "Limp Home Mode" until the situation is corrected

Possible Causes :

Fuel with a large percentage of sulfur will clog the DPF quickly
The Mass Airflow sensor will also cause this problem. Mass Airflow circuit malfunction.
A large air leak at or near the number one oxygen sensor would also cause a lean mixture.

Repair Processes :

Look for damage to the tank indicating impact that may have damaged the fuel pump or sender. Look for rubbing, scraping, bare wires, worn spots or melted plastic connectors. Pull the connectors apart and carefully look at the terminals (the metal parts) inside the connectors.

Process Tips

Diagnostic trouble code B1618 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 B1618.

Fortunately, B1618 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

B1618 Trouble Code For Specific Cars

B1618 Rover 414 Ignition Coil B Primary Circuit Malfunction
B1618 Ford Street Ka Mirror Passenger Up Circuit Short To Ground
B1618 Mg Maestro Air Suspension RR Height Sensor Circuit Short To Battery
B1618 Buick Cielo Cylinder 6 Misfire Detected
B1618 Subaru Coupe Left Front Center Sensor Circuit Short to Vbat
B1618 Mg Mga Air Suspension Vent Solenoid Output Circuit Failure
B1618 Jowett 9 Seat Headrest Feedback Potentiometer Circuit Open