2002 Chevy Trailblazer rough idle

2002 CHEVROLET TRAILBLAZER
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RETOñO
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Engine Performance problem
2002 Chevy Trailblazer

HI,Ihave rough idle. map and cam/crank correlation codes I replace the map and nothing happens.What can I do?
Apr 16, 2009 at 8:45 PM
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BRIAN 1
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post the codes and will advise from there.
Apr 16, 2009 at 8:57 PM