Paintblend
New member
I have a 2000 Mercruiser 5.7 new long block, new out drive , had injectors cleaned and tested, when i first start it cold it floods black smoke boils, i have to open throttle about 20% to keep it running and in a approximately 2 min it clears up and runs fine,,,,, after it gets heat in it it will start easily and run good,,, but cant get rid of cold start flooding,,,,, changed IAC and TPS no help,, what now,, new fuel pump with new engine,, pressure is 42 to 44 lbs when hit key then drops to around 20 and holds help
open for suggestions:rolleyes:
open for suggestions:rolleyes: