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

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
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..
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