How does the fuel pressure regulator operate?

Tiny
ANONYMOUS
  • 2000 MAZDA PROTEGE
  • 210,355 MILES

How does the fuel pressure regulator operate?

Tuesday, November 13th, 2012 AT 5:43 PM

1 Reply

Tiny
DRCRANKNWRENCH
  • EXPERT
  • 3,456 POSTS

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.

Was this
answer
helpful?
Yes
No
Tuesday, November 13th, 2012 AT 6:10 PM

Please login or register to post a reply.

Other Fuel Pressure Regulator Questions