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oil pressure, water temp gauge and speedometer set
Our gauge set can be selected different gauges , such as oil pressure gauge , water temp gauge , speedometer , tachometer and so on. You can choose which you need. When the engine is working, If the oil pressure gauge pointer is at "The outer side of the 0,. position does not move, which is generally caused by the open circuit of the wire from the ignition switch to the oil pressure gauge or the burning out of the internal resistance coil of the sensor and the oil pressure gauge. The red light is always on, the engine is turned off, and then the ignition lock is opened. Remove the wire on the sensor terminal, and the light is still on, indicating that there is a ground connection between the wire between the indicator and the sensor. If the light is not on, the bulb is burned out or the sensor is faulty. The sensor is installed in the correct direction In order to avoid the direct radiation and heating of other parts by the hot air flow of the bimetallic sheet heated inside the sensor. After the oil pressure gauge or coolant temperature gauge is installed, the two terminals can be wired at will, that is, one is connected to the ignition switch and the other is connected to the sensor. No matter how connected, the current in the circuit will not change, so its indication value will not be affected.
It can be connected to the negative pole of the ignition coil (high-voltage package negative wire). The tachometer works according to the magnetic principle. It can receive the pulse signal generated when the initial pole current in the ignition coil is broken, and convert this signal into a displayable revolution value. The greater the number of revolutions of the engine, the more pulses generated, and the greater the number of revolutions displayed on the meter. It can be connected to the signal wire of the sensor on the crankshaft position. The structure of the sensor on the crankshaft varies with the vehicle model. It can be divided into magnetic pulse type, photoelectric type and Hall type. It is usually installed in the front of crankshaft, camshaft, flywheel or distributor. The two wires are generally magnetic pulse type and photoelectric type, and the signal wire will be clear after being connected. The three wire is Hall type. One power supply wire is mostly red - 5V, one black wire is negative, and the other is signal wire.
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