Boxster S (987) F6-3.4L (2008)
Camshaft Position Sensor: Description and Operation
Camshaft Position Monitoring
General Description
The angle misalignment diagnosis is partitioned in two parts
Part 1: Reference adaptation of the camshaft position
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The reference adaptation will be executed at the end of production line or by tester
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Angle of misalignment are stored in EEPROM over whole engine life, angle limitation +/- 5 degrees crank angle. Misalignment over +/- 5 degrees
crank angle will be added to the adaptation correction in part 2.
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Purpose: adaptation of particular tolerances, which are engine specific and constant (phase sensor + trigger wheel)
Reference adaptation
Part 2: Adaptation of the camshaft position during driving
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Running during driving if camshaft is in dead (unpowered) position
Misalignment during driving