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Engine light coming on and off tips:

1. Check the Gas Cap: One of the most common causes of a check engine light coming on and off is a loose or damaged gas cap. Make sure to check your gas cap for any signs of damage or looseness, and if necessary, replace it with a new one.

2. Check Your Spark Plugs: Another possible cause of a check engine light coming on and off is a faulty spark plug. Make sure to inspect your spark plugs for any signs of wear or damage, and replace them if necessary.

3. Inspect Your Air Filter: A clogged air filter can cause the check engine light to come on and off intermittently. Make sure to inspect your air filter for any signs of dirt or debris, and replace it if necessary.

4. Check Your Oxygen Sensor: A faulty oxygen sensor can cause the check engine light to come on and off. Make sure to inspect your oxygen sensor for any signs of damage or wear, and replace it if necessary.

5. Check Your Fuel System: A malfunctioning fuel system can also cause the check engine light to come on and off intermittently. Make sure to inspect your fuel system for any signs of damage or wear, and replace any faulty components if necessary. If you would like to learn more about how to help you, then you are at the right place.

6. Inspect Your Ignition System: A faulty ignition system can also cause the check engine light to come on and off. Make sure to inspect your ignition system for any signs of damage or wear, and replace any faulty components if necessary.

7. Check Your Exhaust System: A malfunctioning exhaust system can also cause the check engine light to come on and off intermittently. Make sure to inspect your exhaust system for any signs of damage or wear, and replace any faulty components if necessary.

8. Have a Professional Diagnosis: If all else fails, it's best to have a professional mechanic diagnose the issue and repair any faulty components that may be causing the check engine light to come on and off.

9. Check Your Mass Air Flow Sensor: A faulty mass air flow sensor can cause the check engine light to come on and off intermittently. Make sure to inspect your mass air flow sensor for any signs of damage or wear, and replace it if necessary.

10. Inspect Your Catalytic Converter: A malfunctioning catalytic converter can also cause the check engine light to come on and off. Make sure to inspect your catalytic converter for any signs of damage or wear, and replace it if necessary.

11. Check Your Vehicle’s Computer: A malfunctioning vehicle computer can cause the check engine light to come on and off intermittently. Make sure to inspect your vehicle’s computer for any signs of damage or wear, and replace it if necessary.

12. Inspect Your Fuel Injectors: Faulty fuel injectors can also cause the check engine light to come on and off. Make sure to inspect your fuel injectors for any signs of damage or wear, and replace them if necessary.

13. Check Your Fuel Pressure Regulator: A malfunctioning fuel pressure regulator can also cause the check engine light to come on and off intermittently. Make sure to inspect your fuel pressure regulator for any signs of damage or wear, and replace it if necessary.

14. Inspect Your Ignition Coil: A faulty ignition coil can cause the check engine light to come on and off. Make sure to inspect your ignition coil for any signs of damage or wear, and replace it if necessary.

15. Check Your Spark Plugs: Faulty spark plugs can also cause the check engine light to come on and off intermittently. Make sure to inspect your spark plugs for any signs of damage or wear, and replace them if necessary.