Bmw 120d B3940 Engine Error Code

When you check Bmw 120d car engine light came on code B3940 the reason should be . However Bmw manufacturer may have a different definition for the B3940 OBD-II Diagnostic Body (B) Trouble Code. So you should chech it on our car models.

Do you have fresh, clean fuel in the tank? If it's empty, fill it up and go! If it's full, check B3940 Bmw 120d that the fuel shut-off valve is open and that it is clean. Stale fuel, dirt and debris are the most common cause of outdoor power equipment not starting properly. If you store equipment with untreated gas in the tank, it can lead to engine damage.

Bmw 120d B3940 OBD-II Diagnostic Body (B) Trouble Code Description so you have to check ODB-II Engine Error Code list. Reason For Bmw 120d B3940 Code The reason of Bmw 120d B3940 OBD-II Engine Error Code is .

If your vehicle failed a B3940 Bmw 120d test and the Check Engine Light is NOT on, chances are you have a problem with the OBDII system, a burned out MIL lamp, or a faulty catalytic converter. The converter is essentially an afterburner that cleans up the exhaust after it exits the engine. The OBDII system uses a ownstream oxygen sensor to monitor the efficiency of the converter, and it should detect a drop in converter efficiency if the converter has been contaminated or is failing (ignition misfiring, leaky exhaust valves, and oil burning can all damage the converter). What you want to look B3940 Bmw 120d: Any conditions that might cause ignition misfire, an overly rich or lean fuel condition, or loss of compression.

Bmw 120d B3940 Possible Solution :

Power Steering Pressure (PSP) Switch Signal Malfunction The PCM counts the number of times vehicle speed transitions from 0 to a calibratable speed. After a calibratable number of speed transitions the PCM expects that the PSP input should have changed. This DTC is set if the transition is not detected. Vehicle towed with engine running Power steering hydraulic concern was repaired but DTC was not erased PSP switch/shorting bar damaged SIG RTN circuit open PSP circuit open or shorted to SIGRTN PCM damaged Check, if possible, if vehicle was towed or power steering service was performed. Observe PSP V PID while checking wires for intermittents.

What does fault code B3940 mean for Bmw 120d ? What does a diagnostic reading B3940 mean for Bmw 120d ? How to fix OBD2 Code B3940 for Bmw 120d ? What do we know about B3940 code for Bmw 120d ?