4. Fuel Injection System
4-7
Sensors and Drives Outline
Crankshaft Position Sensor (CPS)
Function:
CPS inducts the teeth sequence on the flywheel and transmits voltage signals to ECU to make it work
properly.
Note:
When starting, the TDC position is not known yet; CPS detects the long tooth on the flywheel, determining
the TDC position, with the ignition timing being fixed. When the engine RPM reaches the software pre-set
RPM, the ignition timing will switch to the software settings.
ECU
Crankshaft position sensor
Long tooth
Flywheel
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