When your check engine light turns on, it’s easy to feel a mix of confusion and concern. While some causes may be minor, others can signal serious problems that demand immediate attention. Ignoring the warning can lead to reduced fuel-efficiency, engine damage, or even a breakdown. That’s why it’s important to have your vehicle inspected by a professional as soon as the light appears. At Roy’s Quality Car Care, we provide expert check engine light diagnostics and repair in the greater Hagerstown area. Here are four common triggers of the check engine light that should be promptly diagnosed and repaired.

Faulty Oxygen Sensor

The oxygen sensor measures the amount of unburned oxygen in the exhaust system and helps your car adjust the air-fuel mixture for optimal efficiency. When it fails, your vehicle may burn more fuel than necessary and produce higher emissions. A faulty oxygen sensor can also lead to poor engine performance. And if left unaddressed, it can cause damage to the catalytic converter. Replacing the sensor promptly helps maintain fuel-economy and engine health.

Catalytic Converter Issues

The catalytic converter reduces harmful emissions by converting carbon monoxide and other pollutants into less hazardous gases. If it becomes clogged or damaged, it can’t do its job effectively, and your vehicle may experience poor fuel-economy, sluggish acceleration, or even stalling. A failing catalytic converter will usually trigger the check engine light. 

Malfunctioning Mass Airflow Sensor

The mass airflow sensor monitors the amount of air entering the engine and helps regulate the fuel injection system. When it malfunctions, the engine may run too lean or too rich, leading to rough idling, hesitation during acceleration, and poor gas mileage. If the check engine light comes on and your vehicle’s performance changes noticeably, the airflow sensor could be the culprit and should be tested by a technician.

Ignition System Problems

Worn spark plugs, damaged ignition coils, or faulty wires can cause engine misfires, which trigger the check engine light. Misfires can lead to reduced power and poor fuel-efficiency. Addressing ignition system issues early can help prevent bigger problems and keep your car running smoothly.

Check Engine Light Repair in Hagerstown, MD

When you need auto repair in Hagerstown and the surrounding area, contact Roy’s Quality Car Care at 602-881-2775. At our nearby auto shop, we can expertly address your vehicle’s repair and maintenance needs. Feel free to give us a call to schedule an appointment!