What happened to the forester's weak throttle?

Forester (view the transaction price | vehicle details) The weak soft acceleration of the throttle may be caused by carbon deposition on the throttle, idle motor, air intake, combustion interior and spark plug. It is also possible that the poor quality of oil affects the gasoline filter and oil circuit, resulting in poor oil supply and weak acceleration.

Many people think that carbon deposition in the throttle will affect the acceleration performance of the engine. However, the throttle carbon deposit only affects the idling instability, but has little effect on the engine acceleration performance. Blockage of air filter element or water intake will reduce the air volume, resulting in excessive air mixture, incomplete engine combustion and poor acceleration. At this time, the exhaust pipe emits black smoke seriously. The tubing is broken or the joint is loose, and the oil pump pressure is insufficient, resulting in poor oil supply and weak acceleration.

Poor atomization or blockage of fuel injector leads to poor or non-working oil cylinder. Affect the acceleration performance. There may be black smoke. The problem of oil is also one aspect. If the oil water content is too high, the exhaust pipe will emit white smoke. There is something wrong with the air flow meter, which leads to the decrease of air intake and the mixture being too rich or too thin, which affects the acceleration performance.

The spark plug of individual cylinders is damaged, that is, the cylinder is missing, which affects the acceleration performance. In addition, the wires are also leaking. Too high water temperature or damaged temperature sensor will also affect the acceleration performance.

The blockage of the three-way catalytic device or the problem of the oxygen sensor can also lead to poor engine acceleration (many people think that the oxygen sensor does not affect the engine, but only affects emissions).

After the engine valve, cylinder liner, piston and piston ring are worn, the cylinder pressure can not meet the requirements. Excessive intake valve clearance and too small exhaust valve clearance will lead to cylinder loss and affect acceleration performance. Wear of timing belt (chain) leads to delay or advance of ignition time, which also affects acceleration performance.

In fact, there are many reasons for poor engine acceleration. It should be judged according to the various conditions of the vehicle. For example, kilometers, years, fault points and other reasons. This requires some maintenance experience. (Photo/Text/Photo: Zeng Caihong) @20 19