VVT Cam Changing

What is one of the main benefits of using variable valve timing in engines?

• Improved fuel efficiency

• Reduced engine weight

• Increased engine size

• Higher engine noise

How does cam changing VVT improve engine performance?

• By using a single cam lobe for all valves

• By switching between different camshaft profiles

• By increasing the number of exhaust valves

• By reducing the engine's RPM

What happens when the engine speed reaches a certain point in a cam changing system?

• The engine shuts down

• The ECM locks the rocker arms together

• The camshaft stops rotating

• The fuel injection is paused

What is the purpose of using a valve idling system in VVT?

• To decrease engine temperature

• To reduce oil consumption

• To improve air and fuel mixture consistency

• To increase the number of intake valves

How do hydraulic lifters in advanced VVT systems enhance engine performance?

• By stopping the engine at high speeds

• By reducing the number of cam lobes

• By controlling valve lift and duration

• By increasing engine noise