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SPN 445, FMI 15

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SPN 445, FMI 15

Any know what this code is? 2021 A24 with 6 hours on it. Boat runs and shows no issues at all. Its got the LT4 engine. Thanks

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I cannot find a SPN 445 code listed at all. 

There is a SPN 442 FMI 15 which is a stage 1 exhaust manifold high temperature on the port bank 2.  It can be caused by a lack of cooling water or leak in the exhaust manifold, faulty exhaust thermostat, faulty temperature sensor, or faulty wiring or ground connections.

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