Hey forum, does anyone know where I can get a gauge that has the fittings for an import? I have only been able to find one for American vehicles

 

I think your talking about "FUEL PRESSURE GAUGE BANJO FITTING "
scroll down and read this i think this is what your talking about not 100% sure but here this link FUEL PRESSURE GAUGE BANJO FITTING 12MM BOLT KIT 1/8 NPT | eBay

 

Not necessarally I'm looking for the fitting that attach to the existing rail and fuel lines

 

That ebay part would work. It replaces the fitting at the outlet of the fuel filter. I would suggest using it for temporary tests only; it appears to be made of brass and might break if properly tightened like the steel bolt should be. If you want a permanent hook-up on your car you could remove the fuel rail and drill and tap it with a test port.

 

Little problem with that. This civic doesn't have a fuel filter lol

 

Newer models (2001 up?) have a "fuel module" including the filter, all inside the tank.