engine light is on,code reads 3rd cylinder misfire on 2004 Mitsubishi Diamante

car has 111,000 miles,never had the fuel injectors cleaned, spark plugs, wires and distributor has been replaced at around 60,000 as well as the timing belt, same time

by in Converse, TX on March 02, 2013
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1 answer 2 comments
ANSWER by , March 03, 2013
Your due for spark plugs if you only put in a platnum plug back at 60k. Do you remember what type of plug you put in back then?
COMMENT by , March 03, 2013
autolite platnum
COMMENT by , March 04, 2013
Ok your due for plugs. More than likely once replaced again will fix.