LOL, That guy on the Canadian linked forum Turbo Gp was calling us idiots when a chipped piston was brought up..... Opps. The Motors toast, Learn from your mistake and put in a used long block
people in this thread make me LOL,
the Flashing light is not always a misfire its a "catalyst damaging condition" So yes it COULD be a misfire, there are other things that will cause the Flashing MIL.
i melted (not smashed) a plug and dont have any piston damage....imagine that
there is a very good chance his engine is fine.