Traditional Culture Encyclopedia - The 24 Solar Terms - What's behind the throttle in the HIV engine compartment?

What's behind the throttle in the HIV engine compartment?

That is the control solenoid valve assembly with variable intake manifold length. The fuel tank above is a vacuum fuel tank, which is not used for collecting gasoline or secondary combustion at all.

For details of Buick Excelle, please consult Aika Auto/12 1/