Bad Interior Shake

[1998 Contour]

Has anyone else have this problem? The interior shakes alot and i will have a video for you guys to listen to it. Does anyone else have the same problem? If so do you know what it is? I asked my mechanic if he knew and he was struck by it, he check all the mounts on the motor and stuff with the motor and it was all working 100%. So does anyone know what is going on??

[mystiquevltwin]

Do you have a check engine light on? Misfire?

[1998 Contour]

Do you have a check engine light on? Misfire?

My check engine comes and goes, but when i had the code for it read, it said its was an O2 censor in bank 2, but its a inline 4 and they wouldn't have a bank 2. So misfire was his second guess but his least likely. I'll have someone look at it when i get my tires replaced and my struts looked at...im just really confused as to what it is.