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Alarm - CL High Gasoline

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Bank 1 pre cat O2 sensor in the exhaust manifold. If v-drive, port side of boat. Most likely it's getting wet. And there is a reason for that. Check to make sure the v-clamp is tight, pull the post cat sensor and make sure you can see the honeycomb Cat brick. They go missing a lot then you need a new Cat pipe under warranty. Also want to check the alignment to Y-pipe from Cat pipe. In some cases exhaust manifold nuts are also loose. Have to tighten them, the ones facing the bilge are a PITA to get to.

Edited by skurfer
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  • 6 months later...

Could the installation of a exhaust surf pipe create this error?   I had a exhaust pipe put on when the boat had about 100 hours.  At 130 hours my 2018 23 LSV incurred the error.


SPN:4236 FMI:0

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  • 9 months later...

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