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my car won't pass smog check engine light on during idle the car surges?
1999 Ford Escort

My car won't pass smog check engine light on during idle the car surges?

(1999 Ford Escort)
at idle rpm's go up and down
in San Jose, CA on February 22, 2013
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on February 22, 2013
scan test for codes
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General Diagnosis
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on February 22, 2013
scan test for codes
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