merc 50 EFI blow fuse

[Sylva-Ranger]

Merc 50 EFI 50ELPT BF 2008
S/N 1C079155

Sometimes, after 2 seconds, 2 minutes, 2 hours the motor sudently stop , …...The no 3 fuse blow (Don't crank, no PT ) after change the fuse, now power trim works and engine start.

The fuse can blow again after few seconds, or after few days or few weeks...

The Merc dealer spend many hours on it, find anyting ……

To date, always burn fuse during engine running, not at starting or use PT……

before to check everywhere beetwin the engine and the remote, i whant to know if Anibody expériment same problem ?

All apparent wire and fuses therminals seems to be ok.

Excuse for bad english.

Thank you !

 

[Sylva-Ranger]

Maybe i solved the problem but can't be sure.

The 4 wires plug (that go from the remote to the accessories RPM etc) was hot when i touching whit my hand, not the wires but the plug itself.

I made a new connection and now have to made a lake test to see if the fuse blow again.