1997 5.2 dont think it has a test port. Thats the plastic rails with funky supply line.

 

Could be.... Gotta do some hoop jumping to get the gauge in there then......

 

http://www.mytoolsforyou.com/automot...STR-74484.html

 

I have a 94 ram 1500 318, done all the spuddering crap bad, doing it about after 10 miles of driving, I've replaced alot of things with it not helping at all. Yesterday I bought a 120 amp alternator at a junk yard for $40., my old one was a 90amp.
I had been driving around all morning, and not babying it. Today my truck has NOT have any signs of spuddering, and actually had more throttle response. I will find out tomarrow, when I go to work, because it would do it every day, to and from work.

Well my truck is still doing it, but seems like only when down to 1/4 tank. I wish someone could finally figure it out.