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I just wanted to jump on and tell you thank you so much! The boat has had the knock sensors replaced and running flawlessly. It really was the help of these threads that saved us from just trusting the first mechanic instructing us to get a new ecm. The knock sensors were around 180 fix vs 3500...
We have a 2015 cobalt with a Volvo penta. Last year we had an issue with the battery dying replaced that and boat worked great. Now if we go above 30 mph we get a check engine alarm and codes spn 697, 698 and 695 fmi 5. The boat runs great and even above 30 runs fine just the check engine and...
