Is Your Check Engine Light On? It Could Be Due to One of These 5 Reasons

A check engine light can mean a variety of things. Whatever, the cause may be, drivers in Houston, Texas, should quickly bring their car to a local auto shop when they notice this important light appear. At Santa Ana Auto Care, we understand it can be confusing to understand why this light has suddenly appear on your dashboard, so we’ve laid out 5 reasons why you may be seeing your check engine light:

 

  1. Your Spark Plugs or Spark Plug Wires Need to be Replaced

The spark plugs in your vehicle ignite the mixture of air and fuel contained in the combustion chamber. The spark plug wires deliver the spark that helps the spark plugs ignite.

Why Did it Cause My Check Engine Light to Appear?

Spark plugs and spark plug wires that are worn out can clog the catalytic converter or lead to damage of the ignition coils and O2 sensors. Ignoring a check engine light that appears due to this reason can lead to poor vehicle performance, like reduced horse power and a lower fuel economy. Spark plugs and spark plug wires that are worn out can clog the catalytic converter or lead to damage of the ignition coils and O2 sensors.

 

 

  1. Your O2 Sensor Needs to be Replaced

The O2 sensor, or oxygen sensor, measures how much unburnt oxygen is in your car’s exhaust system.

Why Did it Cause My Check Engine Light to Appear?

A faulty O2 sensor can damage both the spark plugs and the catalytic converter in your vehicle. By not bringing your car to an auto shop to address the issue, your engine will burn more fuel than is necessary, and you will notice a dramatic reduction in fuel economy.

 

 

  1. There is a Problem with Your Gas Cap

Your gas cap seals the fuel system along with helping to maintain the pressure within your car’s fuel tank. It also ensures that gas fumes are not released into the atmosphere when your vehicle is not in use.

Why Did it Cause My Check Engine Light to Appear?

If your gas cap is damaged, loose, or missing altogether, your vehicle will lose fuel through evaporation. Bringing your vehicle in for a check engine light check can help address the cause of this issue and prevent you from constantly having to visit the gas pump.

 

 

  1. The Mass Air Flow Sensor Needs to be Replaced

The mass air flow sensor measures how much air is entering your car’s engine in order to determine the amount of fuel needed to keep the engine running properly.

Why Did it Cause My Check Engine Light to Appear?

A problem with the mass air flow sensor can lead to damage of the spark plugs, O2 sensors, or the catalytic converter. To avoid poor engine performance and a lower fuel economy, it’s important to have your check engine light inspected by a professional auto mechanic.

 

 

  1. Your Catalytic Converter Needs to be Replaced

Your vehicle’s catalytic converter converts carbon monoxide into carbon dioxide.

Why Did it Cause My Check Engine Light to Appear?

A problem with the catalytic converter can lead to your vehicle running at a higher temperature than normal. If the check engine light appears because of this problem, it’s important to bring your vehicle to an auto shop to address the issue. Not only will this reduce engine performance and fuel economy, it will also lead to a failed emissions test.

 

A check engine light means there is a problem with your vehicle that should be addressed as soon as possible to avoid problems. For a professional check engine light analysis in Houston, Texas, give the experts at Santa Ana Auto Care a call at (713) 956-1145.

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