for a second i thought my car was running on 4 cylinders cuz my vtec for a lil bit wouldnt hit, but after changing my oil(didnt do for a while) and put some more oil in it was better, that was like a two weeks ago, and now it seems like in second,third my vtec isnt even pulling,feels a lot weaker, what could this be fellas?
Thx for the help

 

my bad i mean 3 cylinders