What is the reason for BMW N52 reporting fault code 2a87?

[StParker]

The reason for BMW N52 reporting fault code 2a87 is: damage to the sensor itself; unreliable line connection; water or other foreign matter in the plug; abnormal jumping of the crankshaft position sensor signal disc; iron filings at the sensor test terminal, etc. Definition of automotive fault codes: Automotive fault codes are the codes reflected by the car's computer ECU after analyzing a fault. Generally, fault codes are caused by sensor malfunctions or poor sensor performance, but some mechanical faults cannot be read by the ECU. Classification of automotive fault codes: The first type is intermittent faults; the other is actual faults. Usually, intermittent faults can be cleared as long as they do not reappear. However, actual faults must be repaired before they can be cleared.