CarMD: Oxygen Sensor Remains the Number 1 Culprit of Check Engine Repairs

closeup of vintage car dashboardHave you ever been in a situation where a yellow light suddenly flashes on your car’s dashboard informing you to check or service your engine? If so, did you understand what it means? In case your answer is “no,” then you’re one of many car owners who have little idea about what the light indicates.

The check engine light indicates that the vehicle’s computer spotted a problem, which may mean emission or drivetrain issues. The latest CarMD Vehicle Health Index (VHI) shows that oxygen sensor stays as the number one check engine light problem.

CarMD explains that ignoring check engine light problems will bring negative effects on the environment, the vehicle’s fuel economy, and may result in more serious roadside problems.

What is Oxygen Sensor?

Sensors are responsible for regulating engine performance, emissions, and other significant functions. AutoTap says that the sensors must give accurate information to avoid problems in driving, increased fuel consumption, and emission failures.

The oxygen sensor acts like a miniature generator, and when it gets hot, it produces its own voltage. CarMD says that due to poor maintenance or engine contamination, the oxygen sensor fails prematurely.

Drivers think that their cars are driving fine so they ignore the oxygen sensor, little they know that it reduces their fuel economy and deteriorate their cars slowly. Therefore, car experts, like JMC Equipment, stresses that it’s important to bring the car to the repair shop when dealing with this kind of problem.

Other Check Engine Light Problems

Apart from the oxygen sensor, check engine light may indicate other problems. Ignition coil and spark plug place at number two. According to the CarMD report, the replacement of ignition coil and spark plug accounts for 5.66 percent of recommended repairs in 2017.

Following this is the replacement of catalytic converters, which accounts for 5.09 percent of repairs in 2017. This will occur when the driver keeps ignoring its related root cause, like a faulty spark plug, for too long.

Loose or damaged fuel gas cap and EVAP purge control valve place fourth and fifth most common check engine repairs. Do not to ignore it when the check engine light turns on, and it is essential to have a professional check your vehicle to avoid any further damages.