[Putershark]

Oh I agree on the dealer trust factor, flip side of the coin (take if from a former service director) when you do have a warranty related issue (worse so if a major failure) their will be less factory "push back" on the repair "if" a dealer has preformed the service work Sure made my life easier going to bat for my customers when I had all the maintenance records when dealing with factory guys and even more important when looking to secure some factory good will for repairs after the normal warranty period. This though is why it is so important to have a good working trusting relatenship with your dealer and it is as important to shop / select one you like working with "before" you buy your boat

As far as having all the needed test equipment (which is not cheap by the way) it will tell you if you have a fault code and some will even give you report of how the engine (history / big brother) has been ran... Interpreting those fault codes though and not just changing expensive sensors is what takes skill and past history working with such engines day in and day out to really gain. Nothing wrong with getting a second opinion on any needed repair, but I have seen many a loose wire, loose ground or weak battery create a lot of false trouble codes with engines for sure. Just something else to consider before chucking down hard earned cash for test equipment that may never get used