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Distributor: Description and Operation

The distributor contains the Cylinder Identification (CID) sensor and the Crankshaft Position Sensor (CPS). the CID sensor is made up of two different sensors, the first detects Number 1 Cylinder TDC, the second Number 4 Cylinder TDC. These signals are used by the ECA to control ignition and fuel injector timing. An electrical signal is generated as each of the 24 teeth of the distributor rotor passes by the CPS. This signal is used by the ECA to monitor engine RPM.