Stalling under load 5.0 EFI

[2002 Searay]

Good afternoon, I'm having issues with my 2002 5.0 mercrusier EFI stalling under load after warming up. It will run fine for the first 10 minutes most of the time but at higher rpms getting up on plain when warmed up it just shuts off as if you just turned the key off , no warning. It will start right back up idle fine , try to get back up on plain it will stall . Usually 2500 or higher rpms. Changed dist cap, rotor,coil ,crank sensor and have sent the ECM out to a place in California and had checked/ tested no problem found. Has anyone else had a similar issues that has any ideas or a fix for this issues. Any help will be GREATLY APPRECIATED

 

[alldodge]

What is your motor serial number?
Did you have the ECM scanned for codes prior to sending it o=out?

 

[2002 Searay]

There were no codes at that time, that was last fall, haven't had it checked this season. Eng ser #m320993 , ECM info ecm5550202 if that is needed. I found a post about someone having the same issue but the to what the repair is not available.

 

[alldodge]

its a 555ECM but not able to fin the pdf listed

 

[2002 Searay]

I found the TSB 2003-06 from mercrusier and tried the jumper wire from page 3 and it fixed my issue. Now time to search for a new ECM. Thanks for your help.