so last night i was driving my car and it just died. I thought i had ran out of gas because i was pushing my tank so i ran and got some more gas and filled it up with 2 gallons. I tried to start my car and it did but after that it barely stayed on and had NO power it the engine would barely rev over 2rpm and would be shaking. My check engine light went on and i dont know wats going on is this a vacum leak ? dirty gas that went through the engine?