Enter your username:
Do you want to login or register?
  • Forgot your password?

    Login / Register




    Results 1 to 19 of 19

    Threaded View

    1. #17
      Join Date
      Jun 2012
      Location
      South Lyon, MI
      Posts
      1,244
      Country Flag: United States
      I worked in fuel injection at Bosch for years. I would increase the size of the return line to 3/8" and make sure there are absolutely no restrictions.



      Andrew is right about the voltage change affecting the fuel pressure. 12.5V versus 14V can make a big difference in some pumps.

      If you are backing the screw out, it sounds like you are adjusting it correctly. If it stops changing the pressure, then you have completely unloaded the spring adjustment. There is nothing more you can do there.

      Again, open up the return line. It sounds like it is restricting the flow and causing the high pressure. That is what I would do if it were me.





    Advertise on Pro-Touring.com