pulled codes and came up with pressure (map) sensor and split air valve codes. i've had this car a week and been chasing problems. somewhere I thought I saw something about a plastic something that was supposed to be in the vac line or something. what am I looking for there exactly? also is the split air a big deal. i'm sure the pressure sensor is why it doesn't like to idle. someone has removed the airpump and 6pi actuators. would that cause split air code? the acv is still there.

 

is the oe pressure sensor vac line kind of a hard plastic line? it is not a normal rubber line on my car.