Hongqi Shi Ming has oil, but no high pressure. Why?

If the car can't hit the car, the engine of the hot and cold car can't start, and the idle speed is unstable. The main reason is the phenomenon of fuel combustion, such as:

1, automobile battery voltage is low; Specific detection method: use a three-meter voltmeter to test the battery voltage, which is below 10V. If replacement is recommended. As of 1 1V, I hate to use it; Ready to replace. 12V or more is ok, but other reasons should be found;

2, check whether it is caused by coke; If driving about 20 thousand kilometers, focus on checking and cleaning the throttle;

3. Check, test and replace the spark plug;

4. Confirm to improve the quality of gasoline fuel;

5. Check the ignition switch;

6. Test and test the fuel pump, sensors and information about starting and oil supply system.

7. In addition, don't start it immediately after power-on, wait for 30- 1 s before ignition; See if it works;

In any case, please note that you can't take a taxi once, and you must follow the interval of 15-30 seconds, but the power supply can protect the battery and prolong its service life.