Hafei horse racing failed to accelerate in 2009.

What you want to ask is the reason why the speed of Hafei horse racing was weak in 2009? According to the query results of driving vehicle data, there are several reasons for insufficient acceleration.

1, the fuel pressure is too low, resulting in insufficient oil supply and power. It is necessary to clean the injector and check the oil pressure at the same time.

2. Poor ignition leads to poor combustion and obvious fuel waste. The spark plug needs to be replaced.

3, the cylinder pressure is insufficient, this situation is the lack of cylinder and trembling, which will lead to insufficient power. The cylinder pressure needs to be measured.

4. The engine throttle is too dirty to clean, and the exhaust three-way catalyst is prone to failure. It needs a comprehensive inspection by the repair shop.