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1996 200hp efi running issues

Rscottdds

Regular Contributor
I started having issues where the engine would lose power for a second or so while running down the lake. Sometimes it would run very rough trying to get up to speed but finally “catch” and run ok. I replaced the non electric fuel pump last week but that didn’t help. Today it ran ok for the first 10 minutes with one quick power loss at speed. Had it off for half hour or so then it died idling. Had to pump fuel line bulb to get it to start again and it ran rough for a bit as I kept pumping the bulb. I was finally able to get it up and running ok again doing that but ran back to the ramp and called it a day. Electric fuel pump? ECU? Anyway to trouble shoot this thing?

Robert
 
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