Ya I had the same issues ever since I got efi before all fuel upgrades I'll swap it back though next time I've got it torn down. Ya I'll get ahold of them and see what they say I just wanna know why I can't get the high pressure I want all I can get hp wise haha I am just out of ideas and the next things to do are expensive has anyone tried the eBay injector return test kits they are like 60$ If I remember correctly
Low fuel rail pressure shimmed and lift pump
- Thread starter Chadf212
- Start date
You may just be commanding too much fuel. Most max effort tunes run around 24-25k psi of actual rail pressure. Without knowing the pulse width you're running with those pressures, it would be impossible to tell you if there is actually anything wrong.