so a few nights ago i noticed that passenger side tail light doesnt turn on....i just popped in my head light and found out that it doesnt work either.....the strange thing about it is that my reverse lights and brake lights come on. is there a fuse for that side of the car that i can take a look at? maybe a wire came loose somewhere along the line?

any help would be greatly appreciated.
thanks in advance guys.

 

i ran my code scanner yesterday and found that i have low input on several sensors- eg: maf and iat....possibly one or 2 more that i cant remember.
could this be a ground issue? if so whats a good place to start

 

the codes coming up are:
1- p0403 (egr flow malfuntion)- this is bc i have a blockoff plate where the egr should be
2-p0107 map/baro circuit low input
3-p0102-maf or vaf low input (i unplugged the maf bc im pretty sure it is dead)
4- p0113- iat sensor 1 circuit high input.


please someone clue me in on what i need to do to have this car ready for a tune. im planning on going to speed density so that would replace nearly all the sensors that threw codes- but im wondering if there is something else going on here.