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2003 Mazda Mazda6 Question: i have replaced the camshaft sensor, both o2 sensors, and the coolant temp senso



, 2.3L 4 Cylinder, Augusta, GA, August 30, 2013, 08:41

and the codes po340 and po128 keep returning. the engine surges a little and at hwy miles mph 65 to 70 the rpms go crazy but nothing major drivibility wise. can someone please help???

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