Okay guys I recently bought an 03 evo, and I wanted to add a boost gauge. When i opened my hood and looked for the right vacuum lines, they all look messed up and some are cut.





I thought A was suppose to go to B (FPR). I thought C was suppose to go straight to D (intake manifold?) without the T fitting there. I dont know why the one line is cut, am I going to need new vacuum hoses to fix this?

The car seems to run fine as is. Can i leave it like this and connect the T fitting to my boost gauge on a different hose?

 

A goes to B and the line to the FPR as is can be use for a boost gauge if you would like. If not A to B C to D.

But what the previous owner did was basically bypass the fuel pressure solenoid