Obey Your Check Engine Light:

Today’s vehicles have sophisticated onboard diagnostic (OBD) systems that continually monitor the operation of your vehicle. When the OBD alert light comes on, there is a possibility that your emissions are increased and your fuel economy is going down.

An example would be if the oxygen sensor has failed and the engine controller goes to a default setting – increasing fuel consumption. Replacing a faulty oxygen sensor could result in a fuel economy improvement of as much as 40%.

When the OBD light goes on, see your auto dealer for more information.

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