What are some of the most common check engine light issues?
Few things catch a driver’s attention faster than seeing the check engine light illuminate on the dashboard. While the light doesn’t always signal an immediate emergency, it does mean the vehicle’s onboard computer has detected a problem that needs attention. Ignoring it can lead to reduced performance, poor fuel-economy, or more serious damage over time. At Integrity Fleet Service, we provide expert check engine light diagnostics and repair in the greater Gilbert area. Understanding some of the most common check engine light issues can help drivers respond quickly and avoid costlier repairs.
Faulty Oxygen Sensor
Oxygen sensors monitor the amount of oxygen in the exhaust gases and help regulate the air-to-fuel mixture. When an oxygen sensor fails, the engine may burn fuel inefficiently, leading to decreased gas mileage and higher emissions. Over time, ignoring this issue can cause damage to other components, including the catalytic converter. Replacing a failing oxygen sensor helps restore proper engine operation.
Worn Spark Plugs or Ignition Components
Spark plugs and ignition coils are responsible for igniting the fuel mixture inside the engine’s cylinders. When these parts wear out or malfunction, the engine can misfire, run rough, or struggle during acceleration. Routine maintenance helps prevent ignition-related issues.
Mass Air Flow Sensor Problems
The mass air flow sensor measures how much air enters the engine so the computer can deliver the correct amount of fuel. Dirt, debris, or sensor failure can disrupt this process, causing poor performance, stalling, or difficulty starting the vehicle. A malfunctioning mass air flow sensor commonly activates the check engine light and should be addressed promptly to maintain smooth engine operation.
Catalytic Converter Trouble
The catalytic converter plays a critical role in reducing harmful exhaust emissions. A failing catalytic converter can cause sluggish performance, reduced fuel-efficiency, and increased emissions. Because of the catalytic converter’s crucial role, it’s important to address issues with it right away.
Check Engine Light Repair in Gilbert, AZ
For expert
auto repair in Gilbert, AZ and the surrounding area, contact
Integrity Fleet Service at
480-209-5405. Feel free to give us a call to schedule an appointment!













