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Thank you. Where would I find the details for where to add a secondary pump? I've read a number of threads where this helped in a similar situation. The boat has fuel line wrapped up into fuel filter on the wall in front of motor, that feeds into a valve or solenoid (Parker 3 psi), and then to...

Thanks for the input. I'm headed back to the lake tomorrow and will review with this input and respond with questions.

When the new 350 was put in the boat they used many of the components. The ECM wasn't changed and it worked fine for first few weeks. After the problem started to surface they replaced parts one at a time and at one point I sent the ECM to OBD Diagnostic in CA to reflash for the 350. They said...

Thank you. I found bulletin 99-7 from 2001 and will review and follow these steps. A local mechanic who shared a similar story on his 350 came out yesterday and he would push in on the small valve between the injector rails and since it was mostly fuel coming out (bubbles at first) and not gas...

For more than two years our boat with a new 5.7l 350 mpi has experienced issues not starting under hot conditions. Over countless trips to the shop and thousands of additional dollars spent replacing most electrical parts, wiring, ECM we are still having the same issue. The closest we have been...