How to Measure and Use Automobile Fuel Pressure Gauge

First connect the fuel pressure gauge on the main oil supply pipeline, and then start the engine to check whether the fuel pressure is within the specified range. The fuel pressure gauge is used to measure the pressure of fuel supply system and judge the working conditions of fuel system components such as electric gasoline pump and oil pressure regulator. It is a special tool for fuel system inspection and fault diagnosis.

Usage:

1. Start the engine and run it to the normal operating temperature. After the engine stops running, turn off the engine and remove all spark plugs.

2. Fully open the throttle and press the connector of the pressure gauge on the spark plug hole.

3. Drive the engine with a motor at a speed of 100- 150 rpm for 3-5 seconds. At this point, the pointer on the instrument will gradually rise and stop at a certain value, and the indicated value at this time is the compression pressure of the cylinder.

4. Press the button to reset the pointer to zero.

5. Repeat the measurement 2~3 times according to the above steps to improve the measurement accuracy.

6. Cylinder pressure of ordinary automobile >; 0.9 MPa and δ