on an H22a1 what side do I splice the fmu on to the fuel rail??? I dont want to hook that thing up wrong.

 

On the FMU, there are 3 ports.

Top port is vacuum sources [hook this up to any vacuum source]
Side port is inlet port [ hook this port to the ORIGINAL return port from the stock FPR]
Bottom port is return port [ put the stock hose that you took out from the stock FPR to this port ]

you're basically bypassing the fuel retunr from the stock FPR to the FMU first, then back to the fuel return

HTH

stan

 

naw what I mean...... the fuel rail, which fuel line to I cut to splice in the fmu and fuel pump?


theres fuel line on the throttlebody side and theres the fuel pressure regulator side. which one do I go to.


thanks

 

fuel pump goes in between fuel filter and fuel rail, FMU goes between FPR and the tank

stan

 

ok I have everything on the right side now, but when I take it into boost at basically hits revlimiter, and leans out thats at 0psi, I am thinking I may have the fmu backwards. ok the fuel neck goes into the in on the fmu, and the out goes to the tank. is that right?

 

do you have pics on how you install it ? post it, I can check it for you

stan

 

OK I got it figuerd out, we need a missing link the check valves arent cutting it. thanks for all your help man!