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Why Is A Vacuum Line Attached To A Fuel Pressure Regulator? [Solved]

For this to work, a vacuum hose is attached to the mechanical regulator so that the vacuum/pressure acting on the regulator diaphragm and the mechanical spring can act together to change the fuel pressure at a 1:1 ratio to manifold pressure.

Plugging the fuel pressure regulator vacuum line.

“What Is The Function Of

Fuel Pressure Regulator vacuum behaviour

This is a short video showing how

What is a Fuel Pressure Regulator? Why does it connect to the Intake Manifold?

About Rob Dahm: Rob Dahm is a Sports Car Connoisseur. Having a wealth of knowledge in assault rifles, cars, and business …