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Codes P0300 thru P0306 already had plugs and wires changed, camshaft po. Sensor, O2 sensor

Vehicle: 2006 Hyundai Sonata 3.3 v6

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Hi there,

Many times with these if there are multiple cylinder misfires, it's due to a faulty timing belt. If it's jumped time you will get multiple misfires. You may also have a leaking intake manifold gasket that would also cause this type of issue.

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