COMPONENT 1: WHILE DRIVING AT NIGHT, HEADLIGHT SWITCH SHORTED OUT. CAUSED EXCESSIVE SMOKE, THEN FIRE BROKE OUT UNDER THE DASH. I PULLED VEHICLE TO THE SIDE AND CALLED THE FIRE DEPT. AMOUNT OF DAMAGE UNKNOWN AS OF YET. COMPONENT 2: ENGINE STARTED TO REV AND VEHICLE JERKED WHILE DRIVING. DUE TO WEARING DOWN OF INSULATION OF WIRE CONNECTED TO THE ENGINE THAT WAS TRIGGERING EXCESSIVE FUEL TO BE FED TO ENGINE.