I think it's an SX thing. Different transmission, 1.46 vs. 1.23. I'll bet that the rev limiter on the SX is a little higher than the other boats, if there even is one. The engine doesn't care, it loves RPM. Just a guess, but these boats were the top of the line, and are finished out better than some other Toyota boats I've seen, including my first one that I purchased new. Don't get me wrong, they are all plush as hell, even now, especially for the time they were built. I I'm talking about minor crap like how much of the interior is carpeted, it's unreal in this boat, every part of the interiorl, all the way up past the rubrail. How well routed the wiring is, places where raw fiberglass is painted black in barely visible places. There are a lot more labels on wiring on the '01 vs an '00. It's the same wires and connectors, but it's routed better, secured better and it's labeled better on the newer boat. That being said, my old boat is now perfectly routed and secured and labeled, been there done that.
I am experiencing all the age-old problems with ALL the boats, i.e. flakey gauges, alarms. No big whup, easy fix and I'll take pics and crap for you guys that are new and are freaking out because your OIL PRESSURE is too low or high or your engine is on fire. Two wires, one fuse, no more headeaches.
One thing this boat does have is the diode jumpers on certain devices connected to the digital switchbox, like the horn. If you have a boat with the millenium dash (little switches, not rockers) then you have the box that is connected to the switch panel. It has a bunch of orange wires attached to it, that are the outputs to make your courtesy lights, bilge pump, nav lights etc. work when you push a membrane button.
The panels can be flakey, i.e. push the horn button and the entire panel resets. This is a result of a voltage spike that occurs when a coil is deenergized, if it is not filtered it will reset the panel. A simple diode filter across the horn or other coils (motors, relays, solenoids) prevents the problem. It was a factory fix, I never saw exactly how they implemented it until I saw my new boat. It's something you can easily do yourself for minimal cost, details to follow.
