Merc Cruiser 6.2 Fuel pump relay ckt

DCEJB

Recruit
Joined
May 23, 2012
Messages
1
I have a 2004 6.2 MPI with approx 300 hrs on it. This year the first two times out I recieved an error when trying to get on plane. Fuel pump relay ckt and a limited power message on one engine. The boat seemed to be running fine at 2500 rpms and below. When I shut down the motor and restart the message goes away. I replaced the fuel filter but no better. This is storage gas but was treated with stabil prior to layup.
 

achris

More fish than mountain goat
Joined
May 19, 2004
Messages
27,468
Re: Merc Cruiser 6.2 Fuel pump relay ckt

First thing to check is the fuel pump relay fuse, then the relay itself...

The fuel pump relay fuse is between terminals 'a' and 'b'...

Here's what the circus diagram looks like...

attachment.php


Chris....
BTW.... Welcome to iBoats....
 

Attachments

  • ECM wiring.jpg
    ECM wiring.jpg
    116.9 KB · Views: 14
Top