Statement: Enrollment in this class requires that you first purchase and complete the steps for the required eBook. Next step: Please ensure you have purchased and completed the prerequisite eBook class. Once the prerequisite is marked as complete, you will be able to enroll in this class.

About this course:

This course will update the Technician's knowledge and understanding of modern-day diesel vehicles. It covers the theory, operation, and diagnostic processes of diesel engines. Additionally, the course provides an in-depth knowledge of new technologies that lower emissions through a new generation of aftertreatment emission control systems.

CHAPTER SUMMARY:

Variable Valve Timing, Diagnosing of Variable Valve Timing Systems

Variable Valve Timing and Lift Electronic Control and Variable Displacement Systems

Variable Displacement System Diagnosis 

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OBJECTIVES:

 Explain the purpose and function of variable valve timing (VVT).

Describe how an oil control valve (OCV) works. 

Discuss the oil flow through a magnetically controlled vane phaser. 

List the step involved when diagnosing a VVT system.

Describe how a variable valve timing and lift electronic control (VTEC) system works