silly question :)

[E.j]

What is "power boost valve"? and also what does it do? is it worth buying and fitting?
i have a 1.8 hlx bravo and want to find out more info about it.

 

[Tom]

Don't

They were designed for the old bosch mechanical injection systems to give more fuel under acceleration. On modern EFI cars they just use fuel like there is no tomorrow. Waste of money.