20 15-7- 1

10:25:22

Published in

Bench (made of wood)

1. The front wheel brake pads are more worn than the rear wheel, and it is normal to have brake pad iron pins on the hub, especially after long-distance running;

2. Cold start jitter 2 reasons:

1, when the cold car starts, as long as there is fire, the water temperature sensor on the car will transmit the temperature to the driving computer at the moment of work, because the low temperature will affect the idle speed sensor. In order to ensure that the engine of the vehicle has an ideal working temperature, the driving computer will issue an oil supply instruction to increase the fuel injection quantity to the fuel injector, thus rapidly raising the water temperature. When the water temperature rises gradually, the driving computer will give instructions to gradually reduce the fuel injection amount at idle speed, so the speed will be reduced.

2. After the fuel in the vehicle is precipitated overnight, a fuel nozzle on the engine sucks in the steam and impurities of gasoline, which will cause a cylinder to work badly when starting. ...

In addition, I want to ask a question that has been bothering me: should we increase the speed of each gear or increase the speed at a higher speed?