Instructor Ron Bilyeu explains that by using a In-Cylinder Pressure Transducer Test you can view all four cycles, Intake, Compression, Power and Exhaust. So if you are not sure that you have a Variable Valve Timing issue, use your scope to run this test to have the undisputed truth.
Every vehicle by 2020 or 2021 will have gasoline direct injection and variable cam timing in order to meet current and future fuel economy and emission standards. This program is essential to keep up with the future of the automotive industry.