When the check engine light flashes on, it doesn’t automatically mean that your engine is on the brink of complete failure. But you should promptly visit the shop for diagnostics so that the issue can be identified and resolved before it gets the chance to escalate and potentially leave you stranded. At East Windsor Auto, we provide expert check engine light diagnostics and repair in the greater East Windsor, CT area. Here are five common reasons the check engine light illuminates.

Faulty Oxygen Sensor

Oxygen sensors measure the amount of unburned oxygen in your vehicle's exhaust system. A malfunctioning sensor can lead to decreased fuel-efficiency and increased emissions. Ignoring it can also potentially damage your catalytic converter.

Issues with Spark Plugs or Ignition Coils

Spark plugs and ignition coils are essential components of your vehicle's ignition system. If they are worn out or malfunctioning, you may experience rough idling, poor acceleration, and even reduced fuel-efficiency. 

Catalytic Converter Issues

The catalytic converter plays a crucial role in reducing harmful emissions by converting harmful gasses into less harmful substances. Driving with a faulty catalytic converter can lead to decreased performance and higher emissions. With a bad catalytic converter, you may notice a smell similar to rotten eggs.

Mass Airflow Sensor Problems

The mass airflow sensor measures the amount of air entering the engine and helps the engine control unit determine the correct amount of fuel to inject. A malfunctioning sensor can cause a range of issues, including rough idling, stalling, and decreased fuel-efficiency.

Loose/Missing/Damaged Gas Cap

Something as simple as a loose or faulty gas cap can trigger the check engine light. The gas cap seals the fuel system and prevents vapors from escaping. A faulty gas cap may allow fuel to evaporate before the engine gets the chance to run on it. 

Check Engine Light Repair in East Windsor, CT

When you need auto repair in East Windsor and the surrounding area, contact East Windsor Auto at (860) 266-5573. At our local auto shop, we can expertly address your vehicle’s repair and maintenance needs. Feel free to give us a call today to make an appointment!