B2341 Diagnostic Trouble Code

B2341 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 B2341 diagnostic trouble code may include:

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
Faulty or damaged wiring
Hesitation upon acceleration
If the DPF is not cleared the ECU will revert to the "Limp Home Mode" until the situation is corrected

Possible Causes :

A large air leak at or near the number one oxygen sensor would also cause a lean mixture.
Faulty IMRC actuator relay (if equipped)
Defective ECU strategies or components will prevent proper regeneration

Repair Processes :

Use the DVOM to test resistance and continuity on all system circuits if actuator and sensor resistance levels are in compliance with manufacturer's specifications. Look for missing ground strap or a rusty ground where the fuel tank is grounded to the frame. Check for damage to the wiring harness connector.

Process Tips

Diagnostic trouble code B2341 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 B2341.

Fortunately, B2341 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

B2341 Trouble Code For Specific Cars

B2341 Mazda Levante Turbo Charger Bypass Valve Control Circuit High
B2341 Acura Cl ABS Hydraulic Pressure Differential Switch Input Open Circuit
B2341 Darracq 8 Heated Catalyst Temperature Below Threshold (Bank 1)
B2341 Nissan Moco Compressor Overtemp Fault
B2341 Toyota Aristo NVM Alarm Data Failure
B2341 Hillman 40 Passenger's Seat Recline Back Switch Circuit Short to Battery
B2341 Fiat Ecobasis Lamp Seat Belt Circuit Failure