Hi Guys,
I've just bought a 2007 supra 21v. It has a gps perfect pass which I think is connected to the speedo. Anyway, the speedo is sometimes flipping all the way around to the max on the dial, then returns to 0. This is only occurring when the boat is idling or reversing. The problem is if this happens while you are pulling a rider out, the PP slows the engine down because it thinks you are too fast.
Most explanations for speedo malfunction involve the paddle wheel. Boat is currently in the water so will check that in a few days when I pull it out but I'm thinking it's something to do with gps signal. It has the puck on the dash in front of the driver.
Sorry for the novel, I just can't find any info on these symptoms online. Let me know what you all think.
Cheers.
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