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2005 Ford Mustang Question: erratic guages/failed smog

 

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Visitor, Henderson, NV, July 09, 2010, 16:46

I have an issue as my 2005 mustang. It failed smog today with the PO4063 error. I have had a check engine light on for a couple of months, the fuel guage and the speedometer guage are both erratic and not accurate. I am taking it in to a mechanic as I need my car, but am really concerned about getting screwed as I have never failed an emissions test and do not know much about them.

Any ideas what could be wrong or what is required to correct?

Thank you!

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