fuel pressure, where to test

[ikpthegame]

where on a 03 wrx can you test your fuel pressure?

[dumdum]

You have to make a temporary "T" adaptor to fit what mechanics gauge you use.Stick it in bettwen the fuel filter out and fuel rail in.With the vacuum line disconnected and plugged from the regulator you should see 43.5 psi at idle.

[ikpthegame]

Thanks, does anyone knoe what the size of the gas line off the filter is? thanks again.