bad ECU due to too much oil???

[Ronnie]

I had to replace the rectifier in my fx140, right after I did the ECU failed. At least is started sometimes with a bad rectifier, not so once the ecu died.

 

[Darrell40]

Where did you get the ecu?

 

[Roman Wiertelak]

I was having issues with port side engine - smoke and fuel coming out of exhaust and hard to start. Took it to the Yamaha dealer and the technician said the problem was due to way too much oil. He said the oil got into the air box and then into the wire harness ( through the connector) and traveled through the complete harness and into the ECU. The ECU is now damaged and in result the injector for the #1 cylinder is wide open - which is causing the poor running conditions. Is this possible? Has anyone else heard of or experienced this?
The marina where I keep my boat ( not yamaha dealer) performed my oil change last May and I am questioning them for the too much oil... and asking them to pay for the $3,400 repair - two new harnesses and ECU. They do not believe the analysis of the yamaha technician and say they never heard of such a thing. Also asked why did it take so long to happen. The Y tech. said it can take that long for the oil to travel through.... and said it happens all the time.

Thank you for the help.

Lately i bought YAMAHA SX 230 ,year 2005 ,with 2 engines .I'm looking for hole electric box with wires .because i have only one ,box is called YAMAHA 6B6.
MODEL of boat SRT 1100-D.
Computer in the box has these numbers :6P6-00, F8 T94874, 5129
Outer computer has these numbers : SH 678B-13, G4D.3
Do you have something like that ?I can send pictures if you like .
Iam looking forward for your replay .If you don't have it ,do you know where i can find it ?My mail is roman@wiertelak.pl
Kind regards,
Roman

 

[Roman Wiertelak]

View attachment 63406 View attachment 63407 View attachment 63408 View attachment 63409

Lately i bought YAMAHA SX 230 ,year 2005 ,with 2 engines .I'm looking for hole electric box with wires .because i have only one ,box is called YAMAHA 6B6.
MODEL of boat SRT 1100-D.
Computer in the box has these numbers :6P6-00, F8 T94874, 5129
Outer computer has these numbers : SH 678B-13, G4D.3
Do you have something like that ?I can send pictures if you like .
Iam looking forward for your replay .If you don't have it ,do you know where i can find it ?My mail is roman@wiertelak.pl
Kind regards,
Roman

 

[muddflap]

Just a quick FYI. I had similar issue with too much fuel from an open injector and I am in the process of replacing the ECU. When I removed the old ECU there was no oil or water in the box but there was oil in the ECU connector port only and oil on the plug. The only place oil was in the box was in the connector and the connector port on the ECU. I would not have believed this post unless I saw it on mine yesterday.

 

[Murf'n'surf]

Just a quick FYI. I had similar issue with too much fuel from an open injector and I am in the process of replacing the ECU. When I removed the old ECU there was no oil or water in the box but there was oil in the ECU connector port only and oil on the plug. The only place oil was in the box was in the connector and the connector port on the ECU. I would not have believed this post unless I saw it on mine yesterday.

Check your air filter box for blow by oil collection.