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Joined: Mon Apr 22nd, 2019
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Sometimes when changing injectors that's when the problem starts...they must be installed properly and with good seats and O rings. It is very easy to get a piece of debris or something on the backside of the injector which will clog it, also easy to rip an O ring which will cause a leak.... it is just like performing surgery it must be done properly and clean! Aftermarket injectors are garbage, if you hold a Oreillys injector in one hand and a stock bosch 4 hole in the other you will see what I am talking about.
Your 98 Ranger should have two fuel lines? The change from return style fuel (two fuel lines) to a single happened sometime in 98. I am not up on the 3.0 as much as the other engines....
two fuel lines = 36-42 psi fuel rail pressure
single fuel line = 62-68 psi
I checked my fuel system yesterday and I believe it's working perfectly. I have a Returnless System and it stays at 64 psi (key on, engine off), and (key on, engine on) IDLE stays at 64-66 psi. So it is working properly and no leaks.
This weekend I will go ahead and check the compression and change out the spark plugs. I will take some pictures and post them to show what I find. Most likely it's something stupid and simple. Hopefully soon I can get some exhaust parts so I can make it simple. 1 CAT and 1 Muffler. That way i can hear the engine and not the fan.