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Home >> Chevrolet >> 2006 >> Cobalt LTZ >> Repair and Diagnosis >> External Pages >> Different car >> Section 730 (Engine Controls And Fuel - 2.0L - Introduction (2 Of 2)) >> Description and Operation >> Electronic Ignition (EI) System Description >> Camshaft Position (CMP) Sensor

Camshaft Position (CMP) Sensor

WARNING: This page is about a different car, the 2008 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.

The CMP sensors are triggered by a notched reluctor wheels built onto the intake and the exhaust camshaft sprockets. Both of the CMP sensors provide four signal pulses every camshaft revolution. Each notch, or feature of the reluctor wheel is of a different size which is used to identify the compression stroke of each cylinder and to enable sequential fuel injection. Both of the CMP sensors are connected to the ECM by the following circuits:

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