When the check engine light illuminates, it's a sign from your car that something isn't right. While the issue could be minor, it's always best to investigate promptly to avoid more serious problems. At American Five Star Auto Repair & Transmission, we provide expert check engine light diagnostics and repair in the greater Tempe area. Here’s a look at five common reasons the check engine light illuminates.
The oxygen sensor monitors the level of unburned oxygen in your vehicle's exhaust system and sends this information to the engine control unit (ECU). This helps the engine run efficiently and reduce emissions. A faulty oxygen sensor can lead to decreased fuel-economy, increased emissions, and potential problems with the catalytic converter.
The catalytic converter is an important component of your vehicle’s exhaust system. It helps convert harmful pollutants into less harmful emissions before they exit the exhaust system. If the catalytic converter fails, your car will not only emit more pollutants, but you can also experience reduced performance and fuel-economy.
The mass airflow (MAF) sensor measures the amount of air entering the engine and helps the ECU determine the proper amount of fuel to inject. If the MAF sensor is faulty, it can result in incorrect air-fuel mixtures, leading to poor engine performance.
One of the simplest reasons for a check engine light to illuminate is a loose or faulty gas cap. The gas cap seals the fuel system. If it’s loose or faulty, fuel may evaporate before you get the chance to run on it.
Spark plugs and ignition coils are essential for igniting the air-fuel mixture in your engine’s cylinders. Worn-out spark plugs or faulty ignition coils can cause misfires, leading to rough engine performance. Regular replacement of spark plugs and ignition coils can help keep your engine running smoothly.
When you need auto repair in Tempe and the surrounding area, contact American Five Star Auto Repair & Transmission at
480-613-5335. 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!
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Primary Service Areas
Tempe, Mesa, Southern Scottsdale & Eastern Phoenix
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