Kia Sorento: E-CVVT Motor Description and Operation. E-CVVT Motor On Vehicle Inspection
E-CVVT Motor Description and Operation
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Electric Continuous Variable Valve Timing (E-CVVT) system, located on the intake camshaft of the engine,
uses motor rotation to control the rotation angle of camshaft relative to the rotation of crankshaft
regardless of engine pressure.
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E-CVVT controls the DC motor current (duty signal) to more closely control the system compared to the
previous pressure type, to increase reaction speed of cam, to improve startability, and to reduce the emission
of exhaust gas. Also, operation range of intake valve (valve opening angle) is expanded. So, the output and
fuel efficiency are improved.
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E-CVVT Motor On Vehicle Inspection
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The engine control system can be more quickly diagnosed for problems with the KDS. (Refer to "DTC
guide")
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Self diagnosis : Checking failure and Diagnosis Trouble Code (DTC)
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Data analysis : Checking the system input/output data state
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Actuation test : Checking the system operation condition
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Software Management : Controlling other features including system option setting and
Zero-Adjustment
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E-CVVT Motor Specifications
Specification
Item
Specification
Motor power (W / V)
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Special Service Tool
Tool Name / Number
Illustration
Description
A: Electric Continuous Variable Valve Timing (E-CVVT) plug in...