So, I was talking with another member (ILoveMYHonda1984) today and we were debating on the best way to install a fuel pressure gauge. We both settled on the best way to install was by welding a bung on the end of the rail and installing it there. However, if there was an easier way it would be very nice.

Thanks for Looking

 

Many of us just tapped the rail and installed the gauge on the top of the rail. The cost is less than welding. Pipe thread and teflon tape.

 

Yep, that is the same thing I did but with the 06+ returnless systems the rail is thin wall stainless so there is not enough material to tap.

 

Do you have a pic of the rail?
Could you tap the alternate side from the feed and run a line to a gauge mounted in the engine bay?