Mazda 6 P Codes (Powertrain) P0300 - P0399 P0300

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Intermittent Backfiring With Code P0300

2004 MAZDA 6
New Battery, New Ignition Coil And Spark Plug Wires, Spark Plugs, New Alternator. Replaced Valve Cover Gasket Because Oil Leaking Into Spark...
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Asked by Luchito63

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