Have Boat Questions? Ask a Boat Repair Expert.
Hello, my name is Charles. I will assist you.
You only have one issue. The ECU only looks to the coils at key up, this is what is causing the alarm, one of them is either shorted or open. You will need to do a resistance test on them to locate the bad one.
The correct replacement ECU for your engine would be 830044T16 the one ending with 17 is for the fuel injected model and must be paired with a ECU for the fuel management as well.
Yes, with the engine sitting, the jets are most like clogged. You will need to remove them, take them apart, and totally clean all of the jets and the small passages inside them. Use new needles and gaskets when you go back together with them.
How did you test for spark? Grounding to the block is not very reliable. An adjustable gap spark tool is best.
Are these 4 or 5 wire CDM's?
the way that this system grounds, is that they all basically ground back through each other. If you had a bad stop circuit in one or two of then, the two that are working, the rest would not fire. Try unplugging the two that are firing and then test for spark on the others.
Sounds good. Let me know what you get.