Ok, I have a 2008 Ranger Browning crew 700 xp that is giving me fits. The machine will bog down at anything over 1/4 throttle. Will not run full speed. Checked fuel pressure and it is around 29 psi. Bought a replacement fuel pump and installed. New fuel pump would not crank the machine at all. It would turn over and die. Put old pump back on and it would run. Returned the fuel pump and ordered another one. removed old pump and installed new one and it had no power. Returned that pump and they replaced it with a new one. I installed the new pump and it pumps fuel with out the fuel line on. When I hook the fuel line back to it it will not fill the fuel rail with fuel. It will crank and die just like the first one. Put the old one back in and it will run. Any ideas on how to fix this? What am I doing wrong?