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Home >> BMW >> 1983 >> 528e Automatic >> Repair and Diagnosis >> Engine Performance >> System >> MOTRONIC CEC System >> Operation >> Reference Point Pickup

Reference Point Pickup

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This sensor is located in the bellhousing, next to the ESS. It supplies the MCU with piston position information. When the MCU has determined optimum ignition timing (based on input from various sources) information supplied by the Reference Point Pickup is used to signal ignition firing.