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The tachometer and the coolant temp gauge is not working on this machine. I need a way to diagnose the problem so I can fix it. I don't know if it's the sending unit or the gauges, or maybe wiring.
I can't figure out where the speed sensor is located. Is it in the alternator or the injector pump or is it part of the torque converter temperature sensor since it has two wires on it? A wiring diagram would be nice.