If your check engine light flashes on, it doesn’t automatically mean that your engine is on the verge of complete failure. But you should still promptly get to the shop for diagnostics before the issue escalates and causes bigger trouble. At Rennen Imports, we provide expert European check engine light diagnostics and repair in the greater Tampa area. Here are five common reasons the check engine light turns on.

Faulty Oxygen Sensor

One of the most common culprits behind a check engine light is a malfunctioning oxygen sensor. Responsible for monitoring the level of oxygen in your vehicle's exhaust gasses, a faulty sensor can lead to decreased fuel-efficiency and increased emissions. Ignoring this issue could result in catalytic converter issues.

Malfunctioning Mass Airflow Sensor (MAF)

The MAF sensor calculates the amount of air entering the engine and adjusts the fuel injection accordingly. A malfunctioning MAF sensor can lead to poor fuel efficiency, rough idling, and a drop in overall engine performance. 

Catalytic Converter Issues

A failing catalytic converter can trigger the check engine light and lead to reduced engine performance. Your catalytic converter turns harmful gasses into less harmful substances. Signs of a faulty catalytic converter include decreased acceleration and a smell similar to rotten eggs.

Problems with Spark Plugs and Wires

Worn-out or fouled spark plugs and damaged ignition wires can disrupt the combustion process, leading to engine misfires and an illuminated check engine light. Regular maintenance—including the replacement of spark plugs and wires at recommended intervals—can prevent this issue and help to ensure smooth engine operation.

Loose or Faulty Gas Cap

The gas cap seals the fuel system and helps maintain the proper pressure. If it's loose, damaged, or missing, it can cause a drop in pressure and trigger the warning light. Fortunately, this is one of the easiest and least expensive issues to fix.

European Check Engine Light Repair in Tampa, FL

When you need European auto repair in Tampa and the surrounding area, contact Rennen Imports at (813) 879-2886. At our nearby European auto shop, we can expertly handle your Euro car’s repair and maintenance needs. Feel free to give us a call today to make an appointment!