What is the normal value of gasoline pressure?
1 Answers
The normal value of gasoline pressure is between 300 to 350kpa. Symptoms of insufficient gasoline pressure include: 1. Lack of power when accelerating; 2. Frequent stalling; 3. Engine knocking. The causes of insufficient gasoline pressure are: 1. Poor injector sealing; 2. Damaged fuel pressure regulator; 3. Clogged fuel inlet screen; 4. Poor contact in the fuel pump circuit. Methods to test gasoline pressure: 1. Turn on the ignition switch without starting the vehicle; 2. Remove the fuel pump relay and use a dedicated jumper wire to connect the fuel pump circuit; 3. After starting the vehicle, connect a fuel pressure gauge to check the engine's gasoline pressure value.