JamieH
Member
Need advice on an apparent fuel delivery issue. Ran our 1998 330da with 7.4l fuel injection for two hour cruise, boat started and ran flawlessly. Had the generator running as it was a very hot day. Dropped the hook for lunch, but when tried to start the engines an hour later, neither would start. Sounded and felt like neither engine was getting any fuel, generator continued to run so knew it was obviously getting fuel. After 15 minutes of trying, finally got both to start. If they were carberated engines, I would suspect vapor lock, since it was a very hot day. Are EFI engines subject to a vapor lock condition? Strange that both engines were hard starting since they don't share tanks, filters etc? Also noticed that the port engine consumed considerably more fuel than the starboard, even though the starboard tank feeds the generator which was running continuously. Could this be related to the hard start issue? A quick search mentioned the fuel pressure regulator as a potential issue? Owned the boat for 7 years, very well maintained, recent spring tuneup, never any problems. Any advice would be greatly appreciated.