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BallBushing
07-04-2011, 06:14 PM
1999 Maristar 210 VRS. LTR 330 HP Electronic Fuel Injection

It started last year with the engine bogging down at 4000 rpm. This year started to bog down at 3000 then 2000 rpm. Finally died and would not start. Paddled back to the dock and let it rest for the night. Next morning it started up and would idle but would start to bog down at 2000 in neutral. Checked fuel pressure. 14 psi with key on. After starting went to 20 psi then slowly increased to 34 psi. At 2000rpm in neutral increased to 37 psi.

Time for a new fuel pump? Original one has been in for 12 years. 388 hours on it.

Dino Don
07-04-2011, 11:38 PM
1999 Maristar 210 VRS. LTR 330 HP Electronic Fuel Injection

It started last year with the engine bogging down at 4000 rpm. This year started to bog down at 3000 then 2000 rpm. Finally died and would not start. Paddled back to the dock and let it rest for the night. Next morning it started up and would idle but would start to bog down at 2000 in neutral. Checked fuel pressure. 14 psi with key on. After starting went to 20 psi then slowly increased to 34 psi. At 2000rpm in neutral increased to 37 psi.

Time for a new fuel pump? Original one has been in for 12 years. 388 hours on it.

1987 Pro Star 644 hours and same pump---so much for tech.?????

Just kidding---

Super1990
07-05-2011, 08:00 AM
I am having the same problem. Let m know if you find a solution. I would try to change your fuel filters first.

BallBushing
07-08-2011, 07:31 PM
Replaced the fuel pump module today (easy job) plan to rebuild the old one & have a spare. Started right up, idled nice, reved to 2000 rpm in neutral, all seemed good.

Planned to test out on the lake a few hours later when a friend was available to tow if needed. Started to rain slightly, boat started then died. Would restart, run a few seconds then die again. Was unable to idle

Checked fuel pressure and only around 6 psi with the key turned. Not sure what the pressure should be with the key turned.

Any suggestions on what to look at next?