Why does my emissions light came on

If the car is running smoothly, and showing no problems other than the Emissions Light coming on, the problem could be with the sensor that triggers the light. Most of the time, when an Emissions Light comes on, it is due to either a sensor or a problem with the exhaust gas recirculation valve.

It is also possible that you have a vacuum hose that has become disconnected, or has developed cracks. So, is it safe to drive with the Emissions Control Light on? Yes, as long as it is the only light that has come on, you do not have to worry about your safety. However, you should still find out what is causing the problem, and then have it fixed.

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We get it. Ads can be annoying. These issues are related to other systems that work interdependently with the catalytic converter spark plugs and wires, oxygen sensor etc. What is a catalytic converter? Failing Mass Air Flow Sensor Always have your mass air flow sensor checked when the check engine light comes on. Since many of the parts of the engine work together, when one part fails, others tend to follow suit. What is a mass air flow sensor?

The mass airflow sensor measures the amount of air entering the engine. Created a desire for him specifically, to do the job. Hope we get him every time! I was very happy with Nicholas and his knowledge and expertise about diagnosing the issues with my car.

He is honest, reliable and professional. He is now my Mechanic that I will call on for all my car's needs. I will also recommend him to my friends whom have been taken advantage of by other car shops as I have been, and are looking for someone honest , that will not take advantage of them Thank you so much Nicholas for resolving my issue with my car. I feel relieved and happy with the outcome.

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Need Help With Your Car? Related articles. This is a malfunction more commonly found in diesel-powered vehicles. Read more. Immediately pull over to a safe place and have your vehicle towed to an automotive diagnostician for repair. A number of problems can cause your check engine light to come on, but some are more common than others.

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Tip 1: Look for an auto service center that inspects your car to ensure an accurate quote price. Community Support Blog. Thursday 19 April What does that really mean? Get it diagnosed by a professional What to do when your check engine light comes on Not all check engine light warnings are created equal.

Here are four common scenarios, and what they mean: 1. Common causes of a check engine light A number of problems can cause your check engine light to come on, but some are more common than others.