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Q:

i have sudden misfire of 2006 cobalt 2.2 ecotec engine 1002000 miles car ran fin on 2007 Chevrolet Cobalt

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
plugs look clean, boots are not dry rotted from heat dont see any sign of arching?
(1) Answer
Any check engine light or codes stored? Does it miss all the time or just when cold, hot, under load? A little more info would be good for me to help. There have been coil issues and some injector issues. You will need a scanner (not just a code reader) for diag.