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    Guardian mode activation with no explanation from gauge

    Hello, Apologize moderators, I started another thread on my issue as my reason for posting/title changed after further troubleshooting. 350merc B3, on 2013 Monterey 244fs, only 150 hrs, well maintained. My question is, and it should be pretty simple to find an answer, guardian mode kicks in...
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    350 Mag MPI chugging at higher rpms

    Hello (again), 2013 Monterrey 244FS with 350 Merc BIII. Has 155 hrs, 100 hr service done last year. Stored on lift in Jax, FL. Fuel stabilzer added before our mild winter and ran a few times during that time. Took her out yesterday, started up fine, ran fine for about 30 mins. Then she’d start...
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    350 Mag block pressure?

    Hello all, I have a 2013 Monterey 244FS, 350 mag, bravo 3. Only 140 hrs. Had Low Block pressure and guardian activated. Setvice engine soon. Changed pressure sensor, still happend. Pulled pump, needed impeller change. Ran it today, still get service engine soon, and it will run fine great...
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