Have no idea how or why you failed, so how can someone help
without knowing what failed... Just because the check engine light
is off, doesn't mean it will pass emissions.
I had a similar issue, it was my purge valve. I only found out because I kept having a minor vapor leak warning, which the mechanics weren't all that concerned about. Until I failed emmissions and did a bunch of research. I had it fixed and it worked. There is a video on YouTube for do it yourselfers. The quotes I got from garages were between $300-$500. Good luck.
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