HELP! I just got back we have 8psi on the low 20 psi on key up for high and it runs bad at 15psi i'm thinking high pressure is bad just need the spec! thanks bob
hello<br /> most MPI motors ran rail pressure in the 35-40 psi range. the TBI ran 11-15 psi. MPI wont run well at all at 15 psi.<br /> also test your pressure regulator. its an easy system but can be a bit tricky for those that dont know how and why it does what it does<br />good luck and keep posting
hey thanks rodbolt. I will check that regulator the 1 thing I dont like is hooking your fuel pressure tester in line with that set up. cant help getting fuel in the boat. and you have to leave the bat hooked up. thanks bob
