Because when it comes on, it indicates there is a problem with the engine, ranging from mild to severe, seeing the check-engine light illuminating on the dashboard can arise many emotions to the surface. Especially when you are driving to the next destination, when the light pops on, many will get a little anxious. The light coming on can become overwhelming if there are any accompanying smells or sounds unusually manifesting. Our experts can run a diagnostic to find the underlying issue at Top Notch Body Shop & Mechanic. The most common reasons as to why the check-engine light has turned on, however, is we would like to share today.
Spark Plugs & Wires
Electrical problems that will set in motion the check-engine light can be contributed by the spark plugs and wires not effectively functioning. Though they are an essential element to the vehicle’s electrical system and permanent damage to a vehicle’s catalytic converter can be the result, spark plugs are often ignored. Engine misses or pings are produced, rough engine idling, power losses and surges, and other such erratic engine performance are the common red flags of this. It is best to get the problem resolved as quickly as possible to prevent expensive repairs if the check-engine light comes on.
Another likely source to check-engine light becoming lit is ignition coil concerns. The ignition coils ignite the spark plugs with the use of an electric current from the car’s battery. Should there be any impedance with the ignition coil, the electric current running through the car is disrupted. Because the entire electrical system can be negatively impacted if this is the cause, and you need professional care.
Mass Airflow Sensor
The mass airflow sensor can be affected, which can manifest in the check-engine light being illuminated. Designed to measure the correct amount of air is entering to an engine is the mass airflow sensor. When the mass airflow sensor is not working properly the engine’s performance significantly drops due to the unmanaged airflow, the fuel efficiency being reduced is a classic symptom.
Evaporative Emission Control System
The Evaporative Emission Control system (or EVAP) is in place to monitor the gasoline vapors from not exiting the gas time and fuel system or releasing into the air. Broken valves, faulty gas caps, or leaking vacuum hoses and vents are simple issues that can arise that affects the EVAP. The vehicle will need to be serviced, it causes the check-engine light to illuminate, however.
To operate at maximum performance, the oxygen emissions levels need to be managed so that the vehicle’s engine. The oxygen sensors gauge the gasses that leave the engine to ensure that the correct ratio of oxygen and fuel are being pumped through the engine. When the ratio is imperfect, the fuel economy of the vehicle drops, leading to the engine light to pop on.
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A vehicle’s battery, charging systems, and other underlying problems are a few other common reasons that check-engine light comes on. Since it will only cause the problem to become worse, waiting for the issue to fix itself is not effective and not the best option. Call Top Notch Body Shop & Mechanics and let our certified specialists run diagnostics to find the issue at hand when your check-engine light is activated.