So.....1998 EB 5.4 Expedition 4x4

Rusted out brake lines. I dropped the gas tank to access the driver's side frame rail. Had the fill hose covered with a glove while it was down. Finally got the lines replaced with NiCu and took the glove off to reinstall. Gel battery was dead. Use a gel charger to pump it up. No good. Have to jump it with jump box. Hard to start. Finally gets going, but won't Rev and it backfires if you try to review too much. It will idle down the street, but I could never take it out of the neighborhood. Thought I might have plugged the opposite hoses into the pump, but with it running I was able to disconnect the gray covered line, as opposed to the blue one, and it would still keep running. No fuel was coming from it while it was unhooked. I had the air filter bent up so I could get to the master cylinder better, but I plugged everything back in as I found it. My question is could this be electrical? I wondered if it just happened to be when my alternator died in the end that is why the battery won't charge up either even after it idles for a very long time. Could it be the fuel pump? I hooked up my autoenginuity and fuel pressure was one of the sensors that is supposed to work, but it shows 0 for the value. If I need to replace the pump I just want to do it. Is there anywhere you can check manually for the pressure? Very frustrating to have finally gotten my brakes fixed and now a new problem is raised it's ugly face. Any help would be great, thanks

Also, no CEL codes showing

 

Since your vehicle doesn't have an electronic fuel pressure sensor in it, a value of "0" reported by AE is expected.

There should be a pressure port (looks like a tire valve stem) on the fuel rail where you can measure pressure with a mechanical gauge. You can pick up a gauge set from your local auto parts store. Maybe, they'll have one under their "loaner" program, call around.

 

I have a gauge, just couldn't find the port. Any idea which side it should be on?

 

You'll have to look at your engine, I can't see it. Follow the fuel supply and return lines from their springlock connectors and just follow the rail around.