Function of oil control valve.
The main function of the oil control valve is to limit the maximum pressure of the lubrication system to prevent excessive pressure from damaging the components of the lubrication system and avoiding the occurrence of oil leakage. The oil control valve ensures the normal operation of the engine lubrication system by adjusting the pressure of the oil. It is usually installed on the outlet oil channel of the oil pump to effectively monitor and regulate the pressure of the oil. If the oil control valve fails, it may cause the vehicle to stall during driving, and the oil pressure will rise abnormally, which will affect the normal operation of the vehicle.
The working principle of the oil control valve involves a valve body assembly and an actuator assembly, which work together to achieve oil pressure regulation. In the variable valve timing system, the oil control valve chooses different oil circuits to communicate with the VVT controller according to the control instructions of the engine ECU, so that it is in advance, lag or maintain these three different working states. This control mechanism ensures that the valve opens and closes at the optimum time, thereby optimising engine performance.
In addition, the oil, the engine oil, plays an important role in the engine lubrication and wear reduction, auxiliary cooling and cooling , sealing leakage prevention , rust prevention and corrosion prevention , shock buffering and so on. It is known as the "blood" of the car. The function of the oil control valve is to regulate and prevent the pressure of the engine lubrication system from being too high to protect the engine from damage.
The oil control valve is broken
The performance of oil control valve failure mainly includes:
The vehicle may suddenly stall during driving, which is due to the oil control valve can not adjust the oil pressure normally, resulting in insufficient engine lubrication.
The oil pressure is abnormally high, if the oil pressure is too high, it will lead to too thick mixture, black smoke from the exhaust pipe, and insufficient vehicle power. In addition, too high oil pressure may also cause the oil pressure to be too low or even unable to establish, thereby increasing fuel consumption.
The oil will burn, resulting in increased fuel consumption, excessive exhaust emissions, unstable idle speed, enhancing the hidden dangers of the car and increasing the economic burden. Burning oil will also lead to increased carbon accumulation in the engine combustion chamber, weak acceleration, slower speed, insufficient power and other adverse consequences.
Oil control valve damage caused engine shaking, failure light on. The output fault code may be an open circuit of the VVT control solenoid valve, a short circuit to the ground, or a short circuit to the positive electrode. Under normal circumstances, the output voltage waveform of the terminal should be a pulse signal that is much larger than the positive signal, and if the waveform is wrong, it will cause engine failure.
Therefore, once the damage of the oil control valve is found, it should be treated immediately to avoid more serious consequences.
What effect does the oil control valve break on the car
A broken oil control valve can lead to a series of adverse consequences, including oil burning, increased fuel consumption, excessive exhaust emissions, unstable idle speed, and insufficient power.
Oil burning: Oil control valve failure will lead to oil burning, which will cause insufficient engine lubrication, aggravate engine wear, and even failure.
Increased fuel consumption: Oil burning will lead to an increase in engine fuel consumption, which will increase the fuel consumption of the car.
Excessive exhaust emissions: oil burning will lead to excessive exhaust emissions, causing pollution to the environment.
Idling instability: Oil control valve failure will lead to engine idling instability, the vehicle will shake and other phenomena when driving.
Insufficient power: The failure of the oil control valve will lead to insufficient engine power, and there will be problems such as weak acceleration when the vehicle is driving.
Vehicle may stall: If the oil control valve is broken, the vehicle may stall while driving.
Increased engine combustion chamber carbon: Burning oil will lead to increased engine combustion chamber carbon, weak acceleration, slower speed.
Increased economic burden: Burning oil will increase the economic burden of the car, because more fuel and maintenance costs are required.
Affect the normal operation of the engine: the oil control valve is broken, which will cause the pressure of the engine lubrication system to be too high, thus affecting the normal operation of the engine.
The main function of the oil control valve is to regulate and prevent the pressure of the engine lubrication system from being too high. Therefore, when the oil control valve fails, it needs to be treated in time to avoid damage to the engine.
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