does the engine light on means a emmission failure on 2003 Mercury Sable

i failed the 1st test..since i put in coil spark 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..

by in Waterbury, CT on May 10, 2013
1 answer 1 comment
ANSWER by on May 10, 2013
yes something is wrong,scan codes and post so we can adv
COMMENT by on May 11, 2013
i'll get back to you after i scan codes...thanks

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