2007 Dodge Ram 1500 5.7 hemi

About a month ago my dodge would not start, it
was running perfect and out of the blue would not
come back on. I had no oil pressure either. I hooked
a computer to it and it said the crankshaft position
sensor along with oil pressure sensor was bad. So I
replaced it and got it running perfect again. A
month later it just did the same thing and my dodge
will start, but only idle. I have no oil pressure and no
way of acceleration. I replaced the crankshaft
position sensor once again and it did not work. I
hooked up the computer to my truck and it is telling
me I have a crankshaft sensor fault and low oil
pressure sensor. Dealing with I replaced the
crankshaft sensor already and it did nothing, I
figured to ask online to see if anyone has had a
similar problem?