I have a 99 Pro Max 300 that won't start. I worked on it for a month with no luck. I went through every diagnostic in the service manual and they all passed. I gave up and took it to a local marina which is Mercury certified. They have had it for almost 6 weeks now and they can't figure it out. Here's the details:
Injectors are not firing
When you remove the induction system the injectors will fire manually
Plug a noid light into the harness and it does not light up
It is not the computers (they took the computers -fuel and ignition- off a running 225 and no change
All the ohm readings on the injector harness pass
Boat ran like a dream last year.
Thanks in advance...
Injectors are not firing
When you remove the induction system the injectors will fire manually
Plug a noid light into the harness and it does not light up
It is not the computers (they took the computers -fuel and ignition- off a running 225 and no change
All the ohm readings on the injector harness pass
Boat ran like a dream last year.
Thanks in advance...