why is my check engine light on but car drives fine

The check engine light will definitely come on if your car has spark plugs spark plug wires a distributor caprotor or ignition coils and the parts are failing and causing the. Black exhaust smoke may pour out of your tailpipe and you may.

The Check Engine Light Demystified Yourmechanic Advice

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Below is the explanation of these. Make sure your car is then turned on and running. But that something could be one of many things big or small.

Top reasons why your check engine light is on. Other problems that can activate the light include faulty spark plugs or wires. There are many reasons your EML might turn on.

If the light comes back on and your gas needle keeps dropping then im sure that you have a. You can do this yourself at advance auto for free. A check engine light that turns when your car is running fine means there are problems in its electrical system or issues in its emission system.

Why is my check engine light on but car drives fine. Check Engine Light False Alarms Sometimes youll notice a check engine light even though the car runs fine. There are many potential causes for a misfire some of the most common of which include.

First locate your cars OBD-II port and plug in the scanner or the adapter that will link to a wireless device. If the engine control unit is getting the wrong value from the sensor several. Some of the most common are listed below.

The OBD reader will tell you what the problem is and help you determine the best way to have it fixed. If one of the values from a sensor is faulty for a short amount of time it will trigger a trouble code. The gas pump has a pressure sensor in it to tell it when it is full.

Make An Appt Now. Perhaps you forgot to tighten the gas cap. Heres how it works.

Ad Shop 1A Auto Official Site. Ignition system problems example. Common Reasons Why Your Check Engine Light Might Be On.

Takes like 5mins-15 mins to reset. Ad European Auto Service Repair in Redmond WA. In addition to the dashboard light your engine might also overheat constantly and you may smell rotten eggs.

1A Auto Quality Car Parts. The check engine light is the on-board diagnostic systems way of telling you somethings wrong. It is likely an issue with your vehicles emissions that youll want to identify and address before it develops into something more serious like a failed catalytic convertor or airflow sensor.

It could pop on because of something small like a loose or faulty gas cap. A bad coil pack or worn spark plugs. The most common causes of a Check Engine light might include a loose gas cap or faulty oxygen sensor.

If the sensor detects issues that your vehicles fuel is too rich not. The car may have issues like a loose tank cap or even a broken one unchanged oil for a long time presence of air in the gas washing the engine lately etc. Try disconnecting the battery and reset the ecu.

Five Reasons Why Your Vehicle S Check Engine Light Is On