Good day i have a 97' 200is kaddett... after running for a while it starts to jerk and splutter... i put my foot down on the accerator and it sounds like fuel starvation coz it wont rev up and and puffs out smoke out the exhaust and u can smell its fuel... once the car dies it wont start again unless i keep my foot flat on the petrol... once started, still splutting and struggles to rev up? plz help me as i dont knw wat to look at???