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Your inexpensive OBD-II scanner can tell you more than why the check-engine light is on

An OBD-II scanner can do much more than read check-engine codes. These five features can help you diagnose problems faster ...
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Check Engine Light - What It Means and What to Do About It

When the check engine light comes on in a vehicle, it’s indicating that there is some issue with the car that should be checked out. It could be something minor, such as the gas cap not being screwed ...