496 fuel injector issue
 

e a 03 496 ho and the fault alarm goes off only when I start the motor. So I hooked it up to a scanner and it has a fault code 69 fuel injector 6 open. The boat didn't go into guardian mode or lose power still has 100% available power. The boat ran fine with the fault but what should I do to fix it and what injector is number six? Thanks