If you haven't already, try putting in fresh oil and make sure it's nice and hot before you get it tested. Run up and down a freeway a few times, then head to the smog station.

I know that I've failed a few times in the past, because I just drove straight to the smog station from my house, which is about 8 miles in town. But if I got the engine nice and warm with high speed driving, it passed.

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