2003 Evinrude ficht stalls at medium speed

[tinkma]

I have an Evinrude 2003 ficht that runs fine at low speed. It will run at medium speed for a minute or so and then stalls. It won't start back up until I come back the next day and it starts up and runs fine until the same thing happens again once I accelerate and hold at medium speed it will stall again. If my temp Guage is accurate, it reads 120deg when it stalls. Can someone point me in the right direction of what to look at to fix the issue?
Thanks

 

[kd4pbs]

Do you have spark when it stalls? Any ECM codes?

 

[Crosbyman]

EV diagnostic 5.9 will work on the FICHT so you can see all fault codes but it could be a fuel flow issue (venting) if no overheat comes up. Injectors my need a clean-up which the EMM can not detect if plugged.

BTW engine heat is one thing the ECU-EMM may need to be checked out for overheating itself. make certain it has good water flow in/out to cool it.


here is a write up on EV diag software

Evinrude Diagnostics Version 5 A Guide To Getting Started

EVINRUDE DIAGNOSTICS VERSION 5 A GUIDE TO GETTING STARTED September 2021 INTRODUCTION This guide is primarily intended to help Evinrude E-TEC owners. The words...

docs.google.com

see this link for a book on FICHT info

Repair Manuals G1 Motors & Gearcase - Google Drive

drive.google.com

 

[Crosbyman]

 

[tinkma]

Thank you for your quick responses. The boat is on a mouring right now and we just got the ev diagnostic to check the codes when we pull it out of the water. Now I'm thinking of the ventilation. Is there a way to check if the ventilation is good or not while it's on the mouring?

 

[CaptnKingfisher]

This symptom has shown up for me when gas tank has water in it. So when I have symptoms related to fuel I take a sample from the tank and look at it before beginning other troubleshooting. It's a very easy thing to check and cross off the list. Disconnect the fuel line and use the primer bulb to pump some gas into a clear glass jar and see what it looks like.

 

[Crosbyman]

prop ventilation... cowl ventilation ?? I doubt either will cause this at a given rpm. post your current past occured fault listing report from EV diag.

sounds like a fuel flow issue possibly filters not allowing enough fuel flow above 1800 rpm ? check fuel distribution from tank to inj. (incl fuel pressure to inj) check VST on ETECs the VST has a micro filters on the inj return line . Injectors may need servicing

 

[Crosbyman]

suggestions only:

see micro filter on a ETEC CARTER vst BARBS DELICATE $$$$$$!!!!!
this filter is sometimes/frequently not shown on some diagrams !!! if you replace it always use those special oeitiker clamps

dirty black specs...indicate crumbing hoses usually from ethanol or age and injectors probably infected and need shop cleaning .. check for mushy hoses on the fuel distribution.

 

[tinkma]

Thank you again for all your responses. I’m going to do the diagnostics and work on the micro and fuel filters soon.

 

[Crosbyman]

above comments are suggestions please post engine mdl#....

on page 3-37 item 8 is shown as a fuel filter assoc. with the fuel manifold return line ?? . Is it a filter ??? the text assoc. with the diag. makes no referrence to it's care and maintenance ??


on the ETEC ....on the much similar looking VST by CARTER the micro filter ..as per the video does the job on the return hose but is imbedded in the return hose barb.... ...The FICHT may be different but in any event if #8 is "the return" filter may well check it or check both !!

the lift pump cover also has a screen filter.
btw !BASS BOAT central! has a FICHT section you may want to look into for suggestions .

 

[Crosbyman]

if not a fuel flow problem (filters, tank pick-up, venting etc...) per say or overheating components needing a cool down one possibility is a defective VST float and stuck jet causing an air lock and pressure build up in the VST itself impeding further in flow of fuel in the VST depriving the HPP from feeding fuel to the injectors. This type of problem like many are not ECU-EMM "detectables" & reported in the fault log.

here is another video fyi..

 

[tinkma]

Engine E250fpzsta. We made a quick trip to the boat (haven’t gathered codes yet) but checked and emptied fuel filter and noticed a lot of sediment settle at the bottom. There was no water separation. Also for the VST filter, we can’t find the right part number to order. I appreciate all the help.

 

[Crosbyman]

the vst conical return line filter frequently does not even show up on several ETEC carter VST pictorials !!

Initially even my own dealer did not know they existed because the 2007 ETEC manual does not mention it !!

If you ask a good service dealer they should know about them and find them... ! if you have no access to them you can always use carbon cleaner and reverse blast the junk out followed by an air blast
if the screen is undamaged that would be you best bet.

in the remote event.... the conical filters were a later OMC_BRP "addition" to the Carter made VSTs, you may find none in a 2003 vst... on a FICHT engine but hopefully you will. if you don't you should consider adding one to keep any hose crud from circulating from your injector return line and BACK out to the injectors poasibly even messing up the HPP base filter !!!

if not this may help...shipping $$$$ is excessive ... shop around !!! they sell for $2 sometimes

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