HOW DOES THE FUEL PRESSURE REGULATOR OPERATE?

2000 Mazda Protege

Tiny

Anonymous

November, 13, 2012 AT 5:43 PM

How does the fuel pressure regulator operate?

FOUND 947 RELATED QUESTIONS

1 Answer

Tiny

DrCranknWrench

November, 13, 2012 AT 6:10 PM

It essentially has a seat and a bell shaped piece that closes and opens over the gas flow. The vacuum that is attached to it changes the point at which it will allow more or less gas past this seat and bell, like a seat and needle in a carberater, dependent upon vacuum. It allows more gas with more vacuum.
This is on the return line of the fuel system after the injectors.

Please login or register to post a reply.

Fuel Pump Pressure Test
Fuel Pump Test Chevy Tahoe
Fuel Pump Replacement