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  1. 2003 Honda Odyssey LX 230k miles- Flashing CEL with P0300, P0301, P0302, P0304 & P0306 codes

    1999 - 2004 Odyssey
    A few months back my 2003 Honda Odyssey LX (230K miles) got a solid CEL in and no change in performance was noted. The only codes that came in were P0300 & P0302. I took it to a mechanic and they changed the spark plugs, wires, cleaned the upper intake manifold, performed a pressure test (Sat)...
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