Zhengzhou Nissan np300 has a low idle speed.

What you want to ask is the reason for the low idle speed of Zhengzhou Nissan np300? Throttle oil accumulation and throttle carbon accumulation, intake air is too dirty, and spark plug spark caused by individual spark plug failure is too weak.

1, throttle oil accumulation and throttle carbon accumulation, and the air intake is too dirty: with the prolonged use of the car, the air intake of the car will be blocked, and the throttle will have carbon or engine oil, resulting in unstable or even low idle speed. Because of the carbon deposition in the throttle, it will affect the air intake of the car, and the car will also have a low idle speed when the cold car starts.

2. The spark plugs caused by individual spark plug failures are too weak: with the extension of service time, the spark plugs of automobiles will also have carbon deposits. When carbon deposition is serious, the spark plugs on individual cylinders are weak, which will affect the performance of the car and lead to the phenomenon of low idle speed of the car.