[shorod]

The P0401 and P0402 are very likely to be due to a failed Differential Pressure Feedback EGR (DPFE) sensor. These are known to fail and cause those two codes. The parts store may refer to this part as the "EGR Position Sensor" or similar.

The item in your photos is the Positive Crankcase Ventilation (PCV) valve. It would appear the rubber grommet has degraded and is allowing oil to leak past it. I'd suggest you replace the grommet and the PCV valve, but I do not expect that will fix any of your codes.

The P0443 code is related to the valve that vents the fuel tank vapors to the intake manifold to be burned off by the engine rather than emitted in to the atmosphere. I'd suggest fixing the P040x codes and the PCV valve and grommet, clear the codes, then complete a drive cycle and see if the P0443 comes back.

-Rod