We sent the ECM to get reprogrammed, new exhaust manifolds, new impeller. Problem got worse after we just replaced the oil pan (makes no sense to me). It’s now smoking, burning oil….
My 2001 Chris craft launch 25 with 5.7 mercruiser runs great until I keep a consistent speed and RPM for 2-3 min then goes into “LIMP MODE”, I have to bring it to neutral and let sit for 20-30 sec then will run great again, until I do the same (run at constant rpm). The boat will run great when...