dabear Posted May 16, 2017 Report Share Posted May 16, 2017 Mulligan , With all that has gone wrong you are due for some good news. I was at Family Boating last Thursday and they where full of boats before the show. Hope you are back running great soon. You know how I feel about Family Boating Center your boat couldn't be at a better place to be checked out. Joe R Link to comment Share on other sites More sharing options...
ififish Posted May 22, 2017 Report Share Posted May 22, 2017 My 03 vmax hpdi had two issues recently fixed. Shift selector switch would not allow engine to go from 4 to 6 cylinders. Same exact diagnosis as yours. Replaced by mechanic and full rpms back and full fuel delivery. Can only be diagnosed if run on the water hooked to yds. 45$ part Secondly, a faulty wire causing the oil pump not to fill the main tank on motor. Yamaha stated it was ecu, mechanic changed harness and chased wires for two weeks to get the bug out. Meantime , I bought an ecu off ebay then returned for credit while the diagnosis changed. 4 mechanics couldnt figure out the first problem, dont give up on it. hope you find your solution Link to comment Share on other sites More sharing options...
fsusteve Posted May 22, 2017 Report Share Posted May 22, 2017 9 hours ago, ififish said: My 03 vmax hpdi had two issues recently fixed. Shift selector switch would not allow engine to go from 4 to 6 cylinders. Same exact diagnosis as yours. Replaced by mechanic and full rpms back and full fuel delivery. Can only be diagnosed if run on the water hooked to yds. 45$ part Secondly, a faulty wire causing the oil pump not to fill the main tank on motor. Yamaha stated it was ecu, mechanic changed harness and chased wires for two weeks to get the bug out. Meantime , I bought an ecu off ebay then returned for credit while the diagnosis changed. 4 mechanics couldnt figure out the first problem, dont give up on it. hope you find your solution I totally forgot about this issue, I also had the shift selector problem when I first got the boat, same repair. Link to comment Share on other sites More sharing options...
mulligan Posted May 22, 2017 Author Report Share Posted May 22, 2017 I should find out what the issue is today or tomorrow. I know they found one of my new plugs was damaged and an electrical issue but the gentleman I spoke with was not sure what the issue was. Link to comment Share on other sites More sharing options...
dabear Posted May 22, 2017 Report Share Posted May 22, 2017 Mulligan two good things first it doesn't sound like a motor job , second is Curtis at Family Boating Center likes to make sure he has pin pointed the root cause of the problem . Hope you hear something good soon. Joe R Link to comment Share on other sites More sharing options...
Mik Posted May 24, 2017 Report Share Posted May 24, 2017 I have a similar engine VMAX 225, 2003 and had similar issues but it ended up being the VST filter and others. Kinda weird that you are burning at lot of oil...they are mechanical pumps i think so I find it strange they are using more oil at low loads. Let me know what you find out! Link to comment Share on other sites More sharing options...
mulligan Posted May 25, 2017 Author Report Share Posted May 25, 2017 Curtis at FBC got to dig into the motor today. He did look at it and ran it at the end of last week and everything tested and worked fine for him. Today he had a chance to try to repeat the issues I had and was able to do so. It turned out to be the TPS. Apparently the TPS only worked when it wanted to like when I tested it and Curtis ran the boat. Link to comment Share on other sites More sharing options...
hurricane Posted May 25, 2017 Report Share Posted May 25, 2017 That's great to hear! Link to comment Share on other sites More sharing options...
whichwaysup Posted May 25, 2017 Report Share Posted May 25, 2017 Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.