B2305 Diagnostic Trouble Code

B2305 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 B2305 diagnostic trouble code may include:

Poor acceleration
Cherry red hot catalytic converter
Possible spark knock (detonation / pre-ignition)
The engine oil will exhibit dilution from the ECUs attempts to increase engine temperature. Some vehicles advance the fuel injection timing slightly after top center to afterburn a small amount of fuel to increase exhaust temperatures. Some of this fuel enters the crankcase. When the ECU determines the necessity to regenerate the DPF, the service life of the oil be shortened significantly

Possible Causes :

Defective ECU strategies or components will prevent proper regeneration
The Mass Airflow sensor is a hot wire that senses the volume of air entering the intake manifold. The computer uses this information to control fuel mixture.
A large air leak at or near the number one oxygen sensor would also cause a lean mixture.

Repair Processes :

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. 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 B2305 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 B2305.

Fortunately, B2305 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

B2305 Trouble Code For Specific Cars

B2305 Daewoo Mantica Gate Select Position Circuit Low
B2305 Aston Martin V12 Air Suspension Warning Lamp Circuit Failure
B2305 Toyota Ist Oil Level Switch Circuit Short To Ground
B2305 Porsche 936 Fuel Level Output Circuit Malfunction
B2305 Volvo 145
B2305 Vauxhall 30 Power Window One Touch Up/Down Activated Simultaneously
B2305 Opel Crossland X Digital TRS Failed to Transition States in KOEO / KOER