9-3 (9440) L4-2.0L Turbo (2.0 T) (2006)
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Crankshaft Position Sensor: Description and Operation
Crankshaft Position Sensor (345)
Main task
The control module receives information on crankshaft position and speed from the crankshaft position sensor.
Rpm is used to:
^
indicate engine operating point (together with the engine load). The operating point indicates which values are to be used in matrices and tables.
^
Regulate idle.
Crankshaft angle is used to calculate when angle-related functions are to be activated. These include ignition, injection and knock detection.
Type
A perforated disc with 58 ribs is mounted on the crankshaft. The sensor is inductive and is mounted in the engine's crankcase wall. The distance between
the sensor and the perforated disc is 0.4 - 1.3 mm and cannot be adjusted.
Connection
