What happens if the VVT solenoid valve fails?

[SimonFitz]

When the VVT valve is damaged, common symptoms include sluggish acceleration, fault codes being triggered, increased fuel consumption, and severe difficulty in starting the engine. VVT system malfunction: If there is an issue with the VVT system, it may cause a delay in valve timing, resulting in weak acceleration or hesitation. In general, this leads to starting difficulties and unstable idle speed. It is recommended to promptly inspect and repair the system when these symptoms occur. Function of VVT: The VVT system continuously adjusts the engine's valve opening and closing timing as well as the air intake volume. This enhances engine power, optimizes the torque curve, and provides the significant benefits of improving engine performance while reducing fuel consumption.