CHEVROLET BLAZER ENGINE MISFIRE IDLE

Had Intake Gasket Fixed, And Now The Ses Light Is On, And There Is A Misfire Code (ps301) For Spark Plug One, I Have Replaced Plugs And...

My Blazer Is Sputtering Or Misfiring At Idle And At Low Speeds. When I Give It Alot Of Throttle It Dont Sputter. The Service Engine Light...

My 98 2-door Blazer Has Been Misfiring Since I Bought It. If I Drive It Easy, It Is Fine. But If I Try To Floor It, It Usually Just Revs...