I have a '99 Merc 175 EFI that has been giving me problems for the last year. I've had it into the shop twice (soon to be three times) and I've already spent a little over $2,000 trying to get the problem fixed, including having the ECU rebuilt this past winter. There are very few places around me to take the motor, and I know the tech is trying to figure out what's going on, but it's getting very frustrating. Right now the tech is about 3 weeks out from being able to get me in to take a look at the motor again. Luckily, most of the places I fish are small lakes where I can get by using just the trolling motor, so at least I'm not unable to fish between now and then. I'd love to just replace it with something new or slightly used, but have not yet convinced the wife since a new motor would cost more than what we paid for the boat/motor almost three years ago. The shop I take it to sells and services Mercury and Honda outboards. I can't sell the motor outright since it's not working right. I have no idea if I could part the motor out and get much doing that. What's the best route to go? Do we continue to sink money into the motor in the hopes this issue gets resolved? If we decide to buy a new or used motor, do we try and strike a deal with the shop that's been working on the current motor? Just curious on what others would do in the same situation?