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  1. SM (2001-2006) Santa Fe
    I have a 2006 Santa Fe 3.5 l limited. About a week ago I started noticing a slight misfire only when in reverse or drive. Last night it escalated into backfiring and bogging down only under 40 mph. Of course the check engine light came on and I checked the codes (P0300, P0301 , P0302 , P0303...
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