When you check engine light comes on we know that can be concerning enough. When it starts blinking it needs to be addressed quickly. When your light blinks it means that you have a catalytic damaging misfire. This means that you engine has a misfire and that it could be causing damage to other components including your catalytic converter. This a time that we would advise you to not drive your car and to pull over as soon as it is safe to do so. This could be solved by performing a tune up on your engine - which is changing the spark plugs and other components or it could be something a bit more serious. Either way it should be checked.
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