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Crankshaft position sensors track the rotational speed and position of the crankshaft, providing essential data to the engine control module for accurate timing of fuel injection and ignition.

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This is a Hitachi Automotive Crankshaft Sensor (Note: Hitachi Automotive Brand). This Crankshaft Sensor is guaranteed to fit your 2009 Chevrolet Impala . SKU number 57-73259-BJDJ. Hitachi’s …

The sensor provides the computer with data about the position of the crank shaft to properly adjust ignition timing.

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Crankshaft position sensors track the rotational speed and position of the crankshaft, providing essential data to the engine control module for accurate timing of fuel injection and ignition.