Have Boat Questions? Ask a Boat Repair Expert.
Thank you for allowing me to assist you, my name is Joe and I will be happy to assist you with your concern today.
First start by checking all electrical connections, powers, grounds, check the battery cables at the battery switch, etc. These should all be clean and tight. Next confirm you do not have a faulty temp sender and that water is flowing correctly without restriction which includes checking the impeller. If nothing is found and only cutting power resets and allows it to work then you may have an ecu problem and may wish to try swapping them between engines to see if the problem corrects and then follows the starboard ecu problem to the port engine with the swap.
Thank you!- Joe
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