To find out why your engine light is on, you should:
1. Consult your car's owner's manual: It may have information about common engine light causes.
2. Use an OBD-II scanner: This tool can read the diagnostic codes stored in your car's computer, which can give you a clue about the problem. You can buy one at an auto parts store or borrow one from a friend.
3. Take your car to a mechanic: A qualified mechanic can diagnose the problem and recommend a solution.
Here are some common reasons why the engine light might come on:
* Loose gas cap: This is a common and easily fixable issue.
* Faulty oxygen sensor: This sensor monitors the air/fuel mixture in your engine.
* Clogged catalytic converter: This device reduces harmful emissions.
* Spark plug problems: Worn or damaged spark plugs can cause misfires.
* Low engine oil: This can cause damage to your engine.
It's important to address an engine light as soon as possible. Ignoring it can lead to more serious problems and costly repairs.