BMW 230i xDrive service by top-rated mechanics at the convenience of your home or office

Hi There, This code is a generic code relating to the mass air flow sensor indicating that there is a lean air/fuel mixture. This can happen when the mass air flow sensor (https://www.yourmechanic.com/services/mass-airflow-sensor-replacement) is dirty or faulty. I would suggest...

The code you listed, P1727 indicates that the engine speed sensor (https://www.yourmechanic.com/services/speed-sensor-replacement) is not providing a signal to the computer. Without knowing the position of the crankshaft, the ECM does not know when to inject fuel or when to ignite...

The crankshaft position sensor is located on the transmission bell housing on the passenger side. You have to remove a plastic splash guard that is attached with a Phillips head screwdriver. Remove the aluminum transmission guard with a 13 mm...

The system is controlled electronically and consequently the controller is a possibility. But, to condemn the controller, there is a long sequence of diagnostic steps (from the Factory Service Manual) that have to be performed. Typically, in diagnostics of this...