02 dodge dakota 3.9L v6 stalling

To start, 5 days ago I was seeming to lose power
around 45 mph but it would pick back up and id be
done. 3 days ago woke up for work and truck
immediately stalled. Can keep it going by keeping
foot on accelerator but as soon as i let off stall.
Threw code for idle air.. changed that, no avail.
While driving it (foot constantly on accelerator) it
constantly jumps like it's losing power or gas.
Checked injectors, cleaned throttle body, added
fuel treatment and burned two tanks of gas,
checked fuel pressure, only time it moves is when
it jumps otherwise good pressure. When I am
driving it the gas gauge drops to empty often and
the oil pressure also drops to nothing but not as
often as the gas gauge. Missed 3 days of work and
just dont know what to do. No one can get me in
for over a week and i cant wait