Boise Check Engine Light

Your car’s check engine light (CEL) is a very important feature. It alerts you to potential problems. If you notice the check engine light has come on, don’t wait to take your vehicle to Edmark Toyota for Boise check engine light service. While the problem may be something as minor as a loose gas cap, the check engine light can signal a significant issue.

A flashing check light is a sign of a serious problem. If your check engine light is flashing, pull your vehicle off the road and turn the engine off as soon as possible to prevent damage to the car. If you see a flashing light, bring your car to Edmark Toyota immediately for CEL testing & diagnosis near Boise.

While a steady check engine light still needs your attention, it’s safe to drive your vehicle until you can schedule a visit to our service department. Let’s examine the most common causes of a steady check engine light.

Bad Oxygen Sensor

Your car’s oxygen sensors measure the level of the exhaust system’s unburned oxygen. When an oxygen sensor goes bad, it will trigger the check engine light. Continuing to drive with a damaged oxygen sensor will lower your vehicle’s fuel economy. The engine will have to work hard to maintain the correct air-fuel ratio. There’s a likelihood the catalytic converter will become damaged.

Faulty Catalytic Converter

The catalytic converter is designed to keep harmful exhaust gasses from being released into the atmosphere. The catalytic converter transforms toxic carbon monoxide into carbon dioxide. In addition to triggering the check engine light, a faulty catalytic converter will also cause your vehicle to experience slow acceleration, engine misfiring, and a characteristic rotten egg smell. Even if your car seems to be driving properly, a malfunctioning catalytic converter will result in your vehicle failing an emissions test.

Damaged Mass Airflow Sensor

The mass airflow sensor is a critical component. It measures airflow and determines the amount of fuel that needs to be sent to the engine. When the mass airflow sensor fails, it can damage several other parts. Fuel economy will suffer, and you may notice the exhaust emitting black smoke.

Worn Spark Plugs

Modern spark plugs can last for over 100,000 miles, but they’ll eventually begin to wear out. Bad spark plugs and wires can trigger your car’s check engine light. When these components are damaged, it can significantly impact your car’s drivability, so it’s important to replace them promptly. Worn spark plugs will cause rough idling and hard starting.

Loose or Missing Gas Cap

Every day, drivers either forget to tighten their car’s gas cap or fail to replace it after filling up at the gas pump. While this may not seem like a serious issue, it can cause problems. A loose or missing gas cap allows gasoline fumes to escape from the gas tank. Not only do the fumes contribute to environmental pollution, but you’ll also lose fuel due to evaporation. You’ll experience a drop in fuel economy.

If your car’s check engine comes on, contact the experts at the Edmark Toyota Service Center. We’ll’ diagnose the problem and repair it quickly.