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Does the engine light on means a emmission failure

(2003 Mercury Sable)
in Waterbury, CT on May 10, 2013
i failed the 1st test..since i put in coil pak..new wires..new spark plugs..new IAC..new filter..new fuel filter..
new gas cap..had throttle body cleaned.. MY ENGINE LIGHT IS STILL ON..COULD IT STILL PASS AN EMISSION TEST..DONT KNOW WHAT
ELSE TO DO..
Displaying 1 answers & 1 comments
Popular Answer
of Greg's Orange Auto on May 10, 2013
yes something is wrong,scan codes and post so we can adv
on May 11, 2013
i'll get back to you after i scan codes...thanks
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