engine warning light

[bryan hope]

350 fuel injected PCM flashs engine warning light at 4000 rpm problem started in spring after storage

 

[makomark]

how old is the engine?

Do you have a scan tool?

Could be one of many things....scan tool will give you the DTC that illuminates the lamp. The year will give a clue as to which ECU (PCM) is installed.

Is it a PCM instrument panel or the boat builders?