I have never seen a ZJ without a port either, but The FSM actually says that depending on the vehicle model and engine that 5.2L engines may or may not have a test port. I guess I learn stuff every day.
I dont think I've ever seen one without the port except wj's. I know if you order a new fuel rail now you get the same rail as the wj with no port.
Yep, no test port on mine = Suck
In the service manual it calls for test with or without test port, fuel system/Sec 14-8 - 14-9 . Hence why i need that miller 6923 adapter
Looking for something cheaper i can connect to the fuel rail quick disconnect fuel line and to that gauge i bought.
It looks like it has the "T" connection that you need to put the gauge inline between the fuel line and the rail. It is not a high quality tool, but it did get the job done for around $20.
Im guessing that long silver piece is what i may need but the question is, is that particular piece pictured the right size to fit my jeeps quick disconnect ? There are a bunch of different sizes. Looks like that one is : " 1/4 in. & 3/8 in. barbed T-fitting" ? one end is 1/4 and the other end 3/8 ? I guess i may buy that kit and roll the dice and burn another $20 + shipping on that one.