The idling speed of the seven-generation Accord engine is very high after overhaul.

High idle speed means more fuel injection at idle speed, and solving the problem of more fuel injection is the key to this problem. Check whether the water temperature sensor is faulty. Failure of the water temperature sensor will lead to an increase in idle fuel injection. Check the idle motor again to see if the motor returns badly. Clean the throttle valve to prevent the gap of the throttle valve from increasing due to impurity blockage. Also check the solenoid valve of the activated carbon tank to see if the solenoid valve cannot be closed due to deterioration. The activated carbon tank is used to store gasoline vapor. If it is not closed, it will supply additional oil at idle speed. Check whether the oil pressure regulator works normally. If it is abnormal, the oil pressure cannot reach the set value and the idle speed is too high. The decoder is used to clear the original fault code and analyze the existing fault code. Check the intake manifold for oil film. After the hot start, the oil film will evaporate and enter the cylinder in the form of gasoline vapor with the air, which is also an additional oil supply.