Seeing the check engine light come on can be stressful and confusing, especially if your vehicle seems to be running fine. While the light doesn’t always mean a major issue, it should never be ignored. Modern vehicles rely on a network of sensors and systems, and the check engine light is your car’s way of letting you know something isn’t working correctly. In many cases, quick attention can prevent further damage and expensive repairs. At Cruz-N-Carz, our local mechanics provide expert check engine light diagnostics and repair in the greater Pearland, TX area. Here are four common check engine light triggers that should be promptly diagnosed and repaired by a qualified mechanic. Faulty Oxygen Sensor Oxygen sensors monitor how much unburned oxygen is in your vehicle’s exhaust. If an oxygen sensor is not working properly, the engine control unit can no longer accurately regulate the air-fuel mixture. This can lead to reduced fuel-efficiency, increased emissions, and damage to your catalytic converter. In most cases, replacing a bad oxygen sensor is relatively inexpensive, but delaying it can lead to more serious and costly problems. Malfunctioning Mass Air Flow Sensor The mass air flow (MAF) sensor measures the amount of air entering the engine and helps determine how much fuel to inject. If the MAF sensor is failing, your engine may run too rich or too lean, resulting in poor fuel-economy, rough idling, or stalling. Ignoring this issue can strain the engine and lead to bigger performance problems down the road. Failing Catalytic Converter The catalytic converter is responsible for reducing harmful emissions by converting exhaust gases into less toxic substances. If it begins to fail, your car may experience sluggish acceleration, decreased fuel-economy, or even difficulty starting. A damaged catalytic converter is a serious issue and should be addressed promptly. Engine Misfire or Ignition System Problem A misfire occurs when the fuel in a cylinder doesn’t ignite properly, often due to a problem with spark plugs, ignition coils, or fuel delivery. This can lead to rough running, power loss, and escalating engine issues. The mechanic can quickly identify the source of the misfire and make the necessary repairs to keep your vehicle running smoothly. Check Engine Light Repair in Pearland, TX When you need auto repair in Pearland, TX and the surrounding area, contact Cruz-N-Carz at  (281) 694-7165  . Feel free to give us a call to make an appointment!