Hello I'm having trouble with my complete stock 2008 v6 4.0 mustang I have codes p0452 that has been on for the longest after replacing so many part relate the code has lack of power use more fuel makes a hicup misfire idles poor. can not figure this out! Starting to think I half to take it into the shop when I like to work on my stuff to learn any kind of help would work thank you.
P0452 p0175 p0193