Thanks Brent. I’ll review the manual, but it’s a strange glitch. I get speed through GPS rather than engine. Garmin sends gps Info via nema 0183 to the Yamaha unit and he recommended turning off all of the output sentences that don’t send speed and try just leaving on GPRMC or GPRM on. I called Garmin and they don’t think it should matter. They mentioned maybe checking the ground or something. Everything looked secure, but there’s just so many tightly bound wires organized all nice in there.I hate to have to take it all apart to track all of the wires etc... It actually works fine and then randomly freaks out and gives random mph/mpg. I hate weird ghost issues like this. It seemed to occur after a software update I did and then went away after for a few trips until Garmin released another software update and now it’s doing it again. I just don’t know if it’s a ground issue, software issue or maybe too many output sentences or something. Just seems like more people would be having a similar issue if it was a software glitch and can barely find any feedback online where people are advising to turn off certain nema output sentences. I’ve reviewed all of the nema portcsettings with Garmin and It’s all correct.The manual you sent seems more complete then the little one I got so Ill review. I’m just hoping someone will come along and say... I had same issue... do this and magically go away [emoji23]
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