Mercruiser 5.7 EFI issue

Jkstanton17

Recruit
Joined
Jul 29, 2020
Messages
3
Have a 2000 Crownline 225br with a 5.7 efi Merc. It is a throttle body not mpi. Had it out last weekend. Ran perfect, yesterday I put it on the water and it would crank but would not start. Been trying to troubleshoot it, so far I know I don't have spark. Also I don't have power to coil. Took spark arrester off and tried to start it and didn't see any fuel. So no spark or fuel. Tried to find what kind of ignition system I have so I can find a troubleshooting flow chart for it. My serial number is 0L685449. New to working on boats so any help is awesome.
thanks
 

dubs283

Vice Admiral
Joined
Jul 27, 2005
Messages
5,343
key on engine off should hear fuel pump run momentarily, if not check main power relay, fuel pump relay

if this is a mefi controlled engine there should be a capped harness end near the rear of the motor (look for pink and red wires going into) with a few mini ato style fuses, these are for main, fuel, ecm, etc...good idea to check those too
 

Jkstanton17

Recruit
Joined
Jul 29, 2020
Messages
3
I hear fuel pump, sounds fine. I have checked the lanyard and reset it just to be sure. What else could make a no spark, no fuel situation?
 
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