After a bit more searching found fault - water in fuel crystallising injector tips. Cyls 1 and 4 were worse than 2 and 3. Cleaned inj tips and fuel system including tank, replaced filter and and car now going fine.
Again, cheers for replies.
Roger.
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Renault Megane 1.4 16V 2003 - Misfire, codes P0304 & 09474 - Fixed # - Roger Quinn December 9, 2010, 9:52 pm
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