WAS DRIVING HYUNDAI KONA DOWN THE FREEWAY. I SMELLED A BURNING SMELL, I SAW THE CHECK ENGINE LIGHT BLINK ONCE. THE CAR WENT INTO LIMP MODE AND I STARTED PULLING OVER TO THE SHOULDER. STOPPING ON THE SHOULDER, I NOTICED SMOKE COMING FROM UNDERNEATH THE HOOD. I EVACUATED THE CAR AND WITHIN A FEW MINUTES, FLAMES WERE PRESENT. IT WAS BETWEEN 2-3 MILES START TO FINISH.