Does anyone know what the thread/port is for this part (#21 at link below) that replaces the banjo bolt on the fuel rail? The Honda manual says to use this to check fuel pressure, but it doesn't tell me what the port is. I don't want to get something that I can't adapt to.

http://www.hondapartsnow.com/Page_Pr...8596%201477671

 

It's a 12mmx1.25mm fitting. It is indeed very difficult to find. I seem to remember someone suggesting a source, so search may help,...or not.

FWIW, I've found that simply cracking the banjo bolt after turning keyswitch to On, will provide a simple determination. If you get a large spray of fuel, you're likely OK, if a dribble, then fuel pump is not supplying pressure. Usual reasons are lack of electrical power to fuel pump from failed Main Fuel Relay.

good luck

 

Autozones lend out fuel pressure testers that tee-off of the banjo bolt on top of the fuel filter.