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Home >> BMW >> 1990 >> 325is Automatic >> Repair and Diagnosis (Single Page) >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation >> Computerized Engine Controls >> Input Devices >> Engine Speed/Reference Point Sensor

Engine Speed/Reference Point Sensor

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Located on lower right front of engine. It supplies the MCU with crankshaft position information. When the MCU has determined optimum ignition timing (based on input from various sources), information supplied by the reference point sensor is used to signal ignition firing.

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