Have Boat Questions? Ask a Boat Repair Expert.
Hello, my name is***** will assist you.
you are going to have either a shorted EMM or there is one of the components that is on that circuit has shorted. Unplug all sensor, injectors, and coils from the harness, then plug in the bottom harness again, if the fuse still blows, the EMM is the fault. If one, plug in one item at a time until the fuse does fail, then replace the last component plugged in.