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  1. J

    MerCruiser 3.0 MPI Electrical Short

    Hello - I have been trying to fix this short for a while now. I need some help with a 2011 . The circuit that has a short is for fuse that is for Fuel Pump Relay, IAC and Ignition Coil. I disconnected the IAC turn the ignition switch on and fuse blows - disconnect the Relay and it does not...
  2. J

    Mercruiser 3.0 PCM-09 Code 3050

    Hello, I have a 2011 Mercruiser 3.0 inboard that kicked off a code 3050 Catalyst 1 Inactive FMI: 1 Data valid but below normal Occurrences: 1 and engine went into Guardian Protection with a previous fault code of 521009 Merc Fault 9 FMI 31 Not Available. The 3050 is active code and the 521009 is...
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