help

hi my name is osiris. i'm new to this kind of things and i'm also a new car owner. i owned a 1993 honda accord ex. the problem is that after installing the rear motor mount the engine light came one. also the car vibrate a lot when doing 50/mph to 60/mph and when i brake the whole car vibrates like is going to brake. i do not know the cause of the problems. any help please?

please help

are u sure u got the right mount??...