How to reduce the noise of Yidong plus?

The solution to the large escape noise is to strengthen earthquake prevention, install more sound-absorbing cotton to absorb the noise, and improve the escape sound insulation to obtain better results. It may be caused by excessive carbon deposition in the engine. It is suggested to solve the problem by cleaning up the carbon accumulated in the car. Carbon deposition in the car includes the following aspects: throttle, intake pipe, cylinder and spark plug. If the engine has too much carbon deposit, the intake efficiency, ignition energy and mixing ratio of the car will be affected.

Brief introduction of Yidong automobile

Yidong is a compact sedan owned by Chang 'an. This car has a wheelbase of 2700mm, and its length, width and height are 4730mm, 1820mm and 1505mm respectively. Yidong * * adopts two engines, one is 1.6L naturally aspirated engine and the other is 65438. Escape 1.6 liter naturally aspirated engine, 128 horsepower, 16 1 nm maximum torque. The maximum power speed of this engine is 6000 rpm.

The maximum torque speed is 4000 rpm. This engine is equipped with dvvt technology and in-cylinder direct injection technology, and adopts aluminum alloy cylinder head and cylinder block to match 5-speed manual gearbox or cvt gearbox. 1.4-liter turbocharged engine, 158 horsepower, with a maximum torque of 260 Nm. The maximum power speed of this engine is 5500 rpm. The maximum torque speed is 1500 to 4000 rpm. This engine is equipped with dvvt technology and in-cylinder direct injection technology, and adopts aluminum alloy cylinder head and cylinder block to match 7-speed powershift.