I just fixed my kelisa vibration issue lately. Guess what, your ignition coil is nearly out of order. At first, I also kind of headache to figure out what is going on with my car shake like hell. I took out 3 of the spark plugs. Found out one of the spark plug is wet. I was suspicious that the ignition coil not function properly. Then, I went to half cut shop and bought a second hand ignition coil. Changed it. Man, so lucky, the engine no more vibration heavily and run smoothly feeling like new. This is my case. Hopefully my situation can help you guys.