Posted on 1/11/2018
A "check engine" or "service engine soon" light can mean many various things, from a misfiring engine to a loose gas cap. Below are the five most common reasons a check engine light will be displayed: 1. Replace the Oxygen Sensor An oxygen sensor monitors the un-burned oxygen from the exhaust. The oxygen sensor monitors combusted fuel. A faulty sensor means it is not providing the right data to your car's computer and causes a decrease in gas mileage. What causes a faulty sensor? The sensor gets covered in oil ash over time and reduces the sensors ability to alter the oxygen and fuel mixture. A faulty sensor not only reduces gas mileage, but it also increases emissions. What you should do Not replacing a broken oxygen sensor can eventually lead to a broken catalytic converter. 2. Loose or Faulty Gas Cap A cracked or loose gas cap will cause the fuel vapors leak out, and can throw the entire fuel system off. A l ... read more