When the check engine light comes on, it doesn’t automatically mean that your engine is nearing total catastrophe. But you should still quickly get to the shop for diagnostics so the issue can be pinpointed and resolved before it escalates. At Fuzion Autoworks, we provide expert check engine light repair in the greater Washington, UT area. Here’s a look at five common causes of an illuminated check engine light.

Oxygen Sensor Malfunction

The oxygen sensor monitors the level of unburned oxygen in your car's exhaust and helps regulate the engine's air-fuel mixture. A malfunctioning oxygen sensor can lead to poor fuel-economy and increased emissions. Typically, replacing the sensor is a straightforward fix that restores efficiency.

Catalytic Converter Issues 

The catalytic converter reduces harmful emissions by converting hazardous gasses into less harmful substances. If it fails, not only does it lead to increased emissions, but it can also reduce engine performance and fuel-economy.

Mass Airflow Sensor Problems

The mass airflow (MAF) sensor measures the amount of air entering the engine and helps to optimize the air-fuel ratio. A failing MAF sensor can cause a rough idle, difficulty starting, and poor acceleration. Replacing a faulty MAF sensor can improve your car’s performance and fuel-efficiency.

Spark Plug and Ignition Coil Issues 

Spark plugs and ignition coils are critical for the ignition process. They work together to ignite the fuel-air mixture in the engine. Worn-out spark plugs or a failing ignition coil can cause misfires and poor fuel economy. Regularly replacing spark plugs as part of your vehicle’s maintenance schedule can prevent these issues.

Loose or Faulty Gas Cap

The gas cap seals the fuel system. When it’s not properly secured or if it’s cracked, fuel may evaporate before your engine gets the chance to run on it.

European Check Engine Light Repair in Washington, UT

When you need European auto repair in St. George or Washington, UT, contact Fuzion Autoworks at (435) 681-2161. At our local Euro auto shop, we can expertly complete your European vehicle’s repair or maintenance needs. Feel free to give us a call today to schedule an appointment!