Hoping someone has knowledge on this issue. I have a 2001 Chaparral 280ssi with twin volvo penta 5.7gsi motors. My port engine decided to stop running and I have noticed there is no fuel spraying from the injectors when I try to turn it over. I am certain it is not the fuel pump, nor the actual injectors themselves. my starboard motor is running fine so I switched both components mentioned and still the same issue on the port side, no spray. Further, I installed the "non running" side components to the starboard side and they work perfectly as well. So, now that I have concluded the parts themselves are not faulty, what am I missing? Also, I checked the fuel lines for kinks or bends and they are good. Is there a sensor(s) that would cause the injectors to not get a signal to spray? I called a mechanic friend and he mentioned checking the oil pressure sensor. To me, that doesn't seem to have anything to do with the fuel getting starved but I'm no mechanic by any means. Any suggestions are greatly appreciated.