replaced water temp gauge, now the oil fuel gauge don't work

• 2023-03-29

When replaced the water temp gauge, the oil gauge and fuel gauge don't work . Check whether the plug of the oil level sensor on the oil tank is loose or oxidized or ablated . Observe whether the oil level sensor is stuck during sliding. Solution to water meter immobility: First, check whether the threaded end is broken or loose. If so, it indicates that the water temperature sensor or instrument is damaged.

If there is no problem with the fuel level sensor, it is most likely that there is a problem with the oil gauge circuit of the instrument panel. At this time, remove the instrument panel and use a multimeter and pins to find the circuit corresponding to the oil meter on the instrument for testing. If the fuel gauge of a new car suddenly drops to zero and then remains stationary, there is a problem with the sensor, which can be replaced directly at the 4S store. Reasons for the water meter not moving: 1. The supply wire of the water temperature gauge is shorted. The electric heating coil of the water temperature gauge is burnt out. The electric heating coil of the water temperature gauge sensor is burnt out or has poor contact. 4. The circuit of the water temperature gauge sensor is poor or short-circuited. The water temperature sensor is composed of a temperature controller and a water level control part, which is heated by a pressure reducing device in front of the electric valve and a rotary muffler heater. The function is to convert the cooling water temperature into an electrical signal and input it to the ECU, including: 1. Correct the fuel injection amount; Increase fuel injection when the temperature is low. 2. Correct the ignition advance angle; At low temperatures, the ignition advance angle increases; To prevent deflagration at high temperatures, it is delayed. 3. Affecting the idle speed control valve. 4. Affecting the exhaust gas recirculation valve. If the pointer of the oil pressure gauge moves, the sensor is OK and there is a problem with the engine lubrication system. Otherwise, it is a sensor fault. If the wire at one end of the sensor is grounded, the pointer on the oil pressure gauge remains stationary. One end of the test lamp can be connected to the power terminal of the oil pressure gauge, and the other end can be grounded for testing.