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Apologize for not responding sooner - was waiting on parts to come in. Turns out the cheap coil I bought off Amazon has been the culprit all along the way here. The coil also smoked the relay - new coil from boats.net and new relay she runs like new. Really should have not went cheap on the...
Update- it turns out it has been the coil the whole time and it smoked the relay as well. New relays and new coil now and she runs like new again. I forgot who said the cheap coils could be the issue - well you were right. Ordered the one from boats.net - now I have to put the wiring harness all...
I absolutely agree with your advice - I just can not find a good diagram for the Mercruiser 3.0 MPI - plenty online for the 4.3 and 5.0 engines but not a lot that I could find on the 3.0. Welcome any recommendations on where I can purchase a Manuel that has a valid wiring diagram. You are also...
unwrapped the harness and traced the Red w/Black stripe wire from the fuse to the relay - nothing wrong with the wire. The second wire in on the fuse is Pink with White Stripe and it goes to each of the 4 injectors - later today after work I am going to disconnect all the injectors and see if...
all components disconnected - and fuse keeps blowing - my assumption is wire from fuse to relay is shorted out inside the harness somewhere. Really would like to know why it shorted honestly - guess I am unwrapping the harness to trace the short down. They do not make anything easy to get to...
I have found several diagrams online and none of the ones I found show the Red w/Black stripe wire. I have the SELOC manual but the diagrams are pretty useless in it. I am at the point of trying to run a separate line from the fuse to the relay - replacing the Red w/black wire - will I do damage...
I inspected the coil - there is nothing indicating anything wrong - when i disconnected the two connectors to the coil and the coil wire to the distributor the fuse still blew when the ignition switch in the on position. I did trace the Red with Black stripe wire from the fuse bank as the wire...
In the past couple weeks I have replaced the Starter the 90 amp starter fuse - and the 50 amp main circuit breaker - boat cranks over as it should with new starter. Boat ran fine last Fall - went to start it up and the starter would not engage so I replaced it - then discovered the 20 amp fuse...
I disconnected the coil and still the fuse blows when I turn the ignition switch on. Steps I have performed-
Disconnected the IAC - fuse blows
Disconnected the Coil - fuse blows
Disconnect the Relay - fuse does not blow -
Switched the Relay out with 2 other same 882751 Relays - fuse blows
Any...
I had to switch the mounting rack from old coil to the new coil so it must have been from Amazon - there just are not that many components to a coil and the engine fired right up with it installed - of course until now… most parts on the engine have come from boats.net but I do remember...
I forgot to say that I started this troubleshooting because the boat will not start- it turns over fine but with the fuse that keeps blowing running the fuel pump relay - IAC and Ignition coil the boat will not start until I figure this one out. The electric priming fuel pump activates and...
Hello - I have been trying to fix this short for a while now. I need some help with a 2011 . The circuit that has a short is for fuse that is for Fuel Pump Relay, IAC and Ignition Coil. I disconnected the IAC turn the ignition switch on and fuse blows - disconnect the Relay and it does not...
No luck there, tried the number I had and someone else answered apparently, he changed his cell number. Thank you again everyone for all the help I greatly appreciate it. As soon as I get the new catalyst installed, I will post an update.
I know what I need to do now, thank you everyone for all the help and advice, I greatly appreciate your time on this. Once I get the new catalyst installed and do a load test I will post back. Will be a few weeks before I can get to this.
