Operation CHARM
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BMW
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1982
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528e (E28) L6-2693cc 2.7L SOHC (M20)
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Repair and Diagnosis
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Powertrain Management
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Computers and Control Systems
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Technical Service Bulletins
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All Technical Service Bulletins
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Emission System - Descriptions/Operation
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Motronic
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Input Signals to the Motronic
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Engine Speed
Engine Speed
Engine speed is determined by means of an inductive pulse generator which scans the teeth of the starting ring gear. The alternating current produced is evaluated by the control unit.