I have a 98 Ford Expedition, just had repairs on it, now I need to have a smog test done. Took it to smog station and no codes show up, engine light is not on but the catalyst monitor and evap monitor are on. The smog test station says they can not do the test unless one of these is off. What can I do? I have been driving and driving and driving and they both are still on. Please Help. Thank You
My car has 230000 miles.
My car has an automatic transmission.
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