P2074 Dodge - 05 stratus how do I fix this myself?

Question

This code came along with P0300, P0303, and P0108. I have felt my transmission acting up the last few days which explains the last two but I need to know how to fix it on my own and what to/not to do.

Answer 1

P0300 Random misfire

P0303 Misfire number 3 cylinder

P0108 MAP sensor circuit high input

With a MAP sensor circuit high this is a disconnection of the MAP sensor, being circuit high this is either a disconnection of the sensor, and a misfire of the number 3 cylinder they are right near each other, Fix and resolve the MAP sensor problem

Check the connection of the MAP sensor it should be plugged in.it connection.