Thank you for your reply. Model is BRA23C061920, S/N is A1103880. Both O2 sensors are new, but I'll swap and check. Purchased from individual, and boat is no longer under warranty. Bryan went OOB, but I am contacting VP dealer in Houston. Is it possible there's an electrical issue that...
New to the forum....could not find anything related to Gen 5 fuel trim problems. I am getting fault codes 4236 and 4237 - both FMI-0. Getting a significant engine derate at the time of fault. I have replaced the FCC cartridge filter and checked HP at the FCC (50 PSI at prime, steady 70 PSI...
