B3228 Diagnostic Trouble Code

B3228 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 B3228 diagnostic trouble code may include:

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

Possible Causes :

Faulty IMRC actuator relay (if equipped)
A large air leak at or near the number one oxygen sensor would also cause a lean mixture.
An air leak forward of the DPF will change the sensor readings resulting in the code

Repair Processes :

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. With the valve disconnected, the red voltmeter lead should be attached to the IMRC valve power wire and the black voltmeter lead connected to ground.

Process Tips

Diagnostic trouble code B3228 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 B3228.

Fortunately, B3228 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

B3228 Trouble Code For Specific Cars

B3228 Nissan Kubistar Code Word Unregestered
B3228 Diva 10f IAC Monitor Disabled by PSP Switch Failed On
B3228 Gregoire Sport Passenger Seatback Forward Switch Circuit Short to Ground
B3228 Kieft 1100 Servo Motor Potentiometer Airintake Left Circuit Failure
B3228 Opel Astra J Decklid Ajar Rear Door Circuit Failure
B3228 Ferrari 312 Insufficient Engine Speed Decrease During Self Test
B3228 Moretti Ss Booster Mechanical Failure