M.I.L. Malfunction Indicator Light

Have you ever seen this on your car's dash?

Contrary to popular belief, this does not mean your car is about to explode.

Much like a cough or sneeze when you're about to have a cold, the MIL (a.k.a Check Engine Light) is simply a sign that your engine needs some care soon.

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This light is part of a very sensitive on-board computer system which monitors the vehicles emission control system. This system is called:

On Board Diagnostic System. (OBD)

Normally, the light comes on when turning the key and starting the engine.

Once the engine is running, the light goes out, indicating the emission control system is functioning correctly.
----------------- Boring part is over -------------------------------------

Now sometimes this is a symptom of small issues, such as:

• Completely empty fuel tank <---- probably most common reason if you're cheap adventurous like me.
• There is a problem in engine's electronic control systems <--- aka false alarm
• The fuel filler cap is not tightened securely <--- your gas station attendant didn't pass Pumping101

If, after checking on these points, the MIL continues to stay on, this can mean a big uh-oh.

Call Joseph or an Authorized Mazda Dealer as soon as possible for an inspection.

In most cases, the car is safe to drive and there's no need to tow the car to the dealership.

Silly Curious Rabbit asks: so I should race to the dealership at 80km/hr??? because my car can't wait!

Answer is no. 

Here's what you should do:

• Continue to drive with reduced power.
• avoid hard acceleration or steep hills.
• Avoid high speeds

Remember, if you ignore the MIL and keep driving your car for extended periods, damage on engine or emission control system can and are very likely to happen.

When in doubt, call Metrotown Mazda at (604) 433-7779 and get Joseph :)