I have a problem with misfire what would make it misfire has compression plugsok on 2003 Saturn L300

has fuel spark good plugs compression anybody else have this problem need help

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2 answers 3 comments
Trouble codes?
haven't heard a vacuum leak but will check. Had tried a nother coil but did not work same bed miss. any other thoughts if not vacuum problem? Hard Miss fire codes
Fuel injector maybe.
Will check
"hard misfire codes"-----------what codes & what cylinder(s)?