I have a 2001 Larson 190 with a Volvo 4.3L PEFS engine. When I was at the lake last weekend, the boat would not get above 2500 RPMs and after investigating I noticed that one of the exhaust hoses was leaking. I also noticed that when I turned the key to the on position a steady beeping alarm occurred; however, the alarm stops when the engine is running. I replaced the leaking exhaust hose this week, but the audible alarm is still happening when I turn the key to the on position (still goes off as soon as the engine starts). I determined that the alarm stops when I disconnect the Oil Pressure Sensor near the Oil Filter, so I replaced this sensor today, but the alarm is still doing the same thing. I haven't been back to the lake yet to see if the boat will get above 2500 RPM's after replacing the exhaust hose. Anybody have an idea what else I can do to troubleshoot the alarm issue?