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  1. H

    Crankshaft position sensor replacement

    Did you ever get to the bottom of this?
  2. H

    Mercruiser mpi 5.0 alpha cutting out

    Hi guys got a 5.0 alpha mpi ecm555 it’s cutting out when I throttle back fast or from high rpm after planing and coming off I have replaced the iac it’s just had a new ecm any ideas from them at me
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    Mercruiser mpi ecm555 calibrations

    Looking for info on ecm555 calibrations what years do what i have a 5.0mpi and need an ecm mine is a 2003 I have found a 5.0 alpha one that seems to be the same by the year is 2007 or my2007 would it work?
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    mercruiser 4.3l 175hp down on compresion on cyl 6 only reading 85 psiu

    My mercruiser. 4.3l 175 HP is down on compresion but the worst is only reading 85psi and is making an ireguar tapping noise any tips guys?i
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