My GLT's 'check engine' light came on last week. The last time this happened, the dealer said it was a bad oxygen sensor. My service advisor told me that since the car has two of these, and only one was bad, I should wait--especially since the car was running fine and the county in which I live has no emissions inspection.
Now that the light is on again, I'm thinking this might be the problem again. The car runs fine. My questions are: Is this information correct? and, how much is/are the sensor(s) going to cost? I'm planning to sell this car, as it just turned 150K, and new S80 is in the garage:)
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