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Home >> Mercedes Benz >> 1992 >> 300CE >> Repair and Diagnosis (Single Page) >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation - 3.0L >> Computerized Engine Controls >> Cis-E System >> Ignition Timing Control
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Ignition Timing Control

CIS-E control unit provides information for EZL timing control. Timing information is based on signals from crankshaft position indicator (TD unit), which is an AC-generating sensor mounted on the bellhousing.

AC-generating sensor detects movement of 3 notches on flexplate. Sensor supplies EZL module with information to determine piston position. Distributor is fully electronic.

Intake Air Temperature Sensor - Sensor measures temperature of intake air and sends information to CIS-E control unit for use in mixture and ignition control.