hello, I am French so sorry for my English language and thanks to google translate! I have a problem with the oil pressure gauge on a 1993 hdj80 12 valve. After reversing the sensor wires, the diode placed between the two gauges burned out... I don't know its value, I put in a 13 volt one. The 75 ohm resistor seems to be good and the resistors of the two gauges are ok. when I connect the oil gauge directly with a 3 watt bulb it works correctly but when I connect to the car it does not work and the water temperature gauge remains in the middle even with the engine off. Before replacing this diode, the water temperature was ok..., do you know the value of this diode? Maybe you are thinking of something else... I hope you can help me!! THANKS