2002 225hp EFI - 75hrs - power issue...

[ahelbling]

Fished 2 days last weekend at Lake of the Ozarks with my 2002 Ranger 520 w/ 225 EFI. No problems, ran great. Sunday, tourney day, I plane out and in about 300yds distance I feel a power loss. Return to idle, she idles fine. Hit it again and has nowhere near the power she should, feels bogged down, badly. Didnt run her for another few hours. Tried it later that day and she fired right up and planed out ok, bogged down soon after once again. I pulled the plugs when I got back and they are fine. Any ideas??? Figured I would try this forum before throwing 100s of dollars towards diagnostics at the shop.

TIA,
Andrew

 

[CharlieB]

Re: 2002 225hp EFI - 75hrs - power issue...

Fuel restriction, like a dirty filter, initially powers up fine but quickly runs low/out of fuel.

I would not think it to be the high pressure pump or the sock filter as they would limit power from the git-go.

Primary pump and/or primary filter not keeping the vapor seperator filled, thus allowing the high pressure pump to run low on fuel supply and reduce fuel pressure to the injectors.

 

[ahelbling]

Re: 2002 225hp EFI - 75hrs - power issue...

if that is indeed the case, what do you think it would cost me for new pump and filter? ballpark figure? Any links to the parts would help me out too. Thanks man!

 

[CharlieB]

Re: 2002 225hp EFI - 75hrs - power issue...

http://www.crowleymarine.com/parts.cfm

is a source to look up parts then go to the iboats parts site or sierra and cross the OEM number and see the price difference

Before you buy ANY parts check a couple of things

Get a partner to pump the primer bulb as you throttle it ON THE WATER and see if that clears the problem, if so THEN double check that the fuel lines and bulb are all in good order with NO AIR leaking into the system

Then you can move on to the primary fuel pump, rebuild or replace, look it up but TEST first, you'd feel pretty small after replacing a pump to later find a small crack in the fuel line coming off the tank!

 

[ahelbling]

Re: 2002 225hp EFI - 75hrs - power issue...

funny you mention that - my father mentioned that he smelled gas that Sunday when we were messing with it on the water......interesting......Thanks man!

 

[ahelbling]

Re: 2002 225hp EFI - 75hrs - power issue...

what are the chances of the Motorola ECU being bad?