I have a 2002 Mercruser, 4-44206HR S, 350 MPI Horizon, s/n 0W024808, I had water in one of my fuel cells, I have drained it and changed all 4 fuel filters, I can't get fuel to the injectors? I pulled the GM style hose off the fuel Mantifold, and I get nothing there, I put an air hose to it and...