This is no time regulation, to determine the bad to change, theoretically can use 200000 kilometers
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Water temperature sensor: When the water temperature sensor fails, the temperature signal is often displayed when the cold car starts or when the hot car starts, the ECU can not get the correct signal, and can only supply the thinner mixture of the engine, so the engine cold car is not easy to start, and it will be accompanied by the problem of unstable idle operation and insufficient acceleration power;