2.5L ('98-'01) 98 Ford Ranger 2.5L running rough and no power.

[Doomgaze]

I was coming home from work the other day and all of a sudden began to lose power. I pulled over and turned the truck off and check fluids etc. Had a scan done at O'Reilly's: P0171: System too Lean (Bank )
P1506: -
P0302 Cylinder 2 Misfire Detected
P0303 Cylinder 3 Misfire Detected

I've replaced the coil packs and the fuel filter so far but no resolution. I had to work all week/weekend so I had my dad check the truck out. He checked the fuel pump and the timing and saw no issue. He didn't check the spark plugs/wires besides the #1. Anyone have any idea aside from those thing that I should check at this point? I know there are many things it could be but just ideas for trouble shooting.

Thank you for your time.

 

[Blmpkn]

Can always try moving the #2 or #3 wire to #1 or 4 to see if the misfire follows the wire. Obviously the other end of the wire needs to be in the right plug on the coil pack..

But considering it's misfiring on neighboring cylinders & also showing a lean condition id probably be taking a look at the intake gaskets.