Automotive Variable Valve Timing & Lift Explained

Automotive Variable Valve Timing & Lift Explained

(Includes electronic Hydraulic valve timing and lift)

By Mandy Concepcion

COPYRIGHT © 2013, 2019, 2023 By Mandy Concepcion

This book is copyrighted under Federal Law to prevent the unauthorized use or copying of its contents. Under copyright law, no part of this work can be reproduced, copied or transmitted in any way or form without the written permission of its author, Mandy Concepcion.

The information, schematics diagrams, documentation, and other material in this book are provided as is, without warranty of any kind. No warranty can be made to the testing procedures contained in this book for accuracy or completeness. In no event shall the publisher or author be liable for direct, indirect, incidental, or consequential damages in connection with, or arising out of the performance or other use of the information or materials contained in this book. The acceptance of this manual is conditional on the acceptance of this disclaimer.

About ASE Certification

We at Automotive Diagnostics and Publishing promote the ASE Certification program and encourage all beginning and advanced technicians alike to participate and get certified. We are not directly affiliated with ASE. ASE Automotive Technician Certifications are recognized throughout the United States by almost all county and state agencies as meeting the requirements to be considered an automotive technician. Many organizations and repair facilities nationwide have ASE Certification as mandatory for their technicians as part of their business model.

It’s one thing to just show up for work; it is quite another to take control of your career, and get recognition for the knowledge and skills you’ve developed over the years. That’s what ASE certification is all about: helping you tell customers, employers, and other people about what you know. After all, being an automotive technician is not just turning wrenches. Your years of hard work show that you’ve gone the extra mile, and put in the time and effort to learn your trade. Your ASE certification patch is proof of it. Get certified now."

We are not directly affiliated with ASE. The Tech-2 is a registered trademark of Vetronix Corp. and GM The DRB III & Starscan are a registered trademark of DaimlerChrysler The NGS is a registered trademark of Ford Motor Co. Any other proprietary name used in this book was done purely for explanatory purposes.

Preface & Acknowledgements

This book, Automotive Variable Valve Timing & Lift Explained of which there's also a companion DVD by the same title, is a one and only up to date work that covers automotive electronic variable valve timing and lift. The way things are shaping up, car makers are doing away with the throttle butterfly valve and relying on valve lift to accelerate the engine. Yes, no more throttle in the near future. This technology has