What is the method for testing engine cylinder pressure?

[ValeriaLee]

Testing engine cylinder pressure involves the following steps: 1. Warm up the engine and then shut it down; 2. Remove all high-voltage wires; 3. Use cylinder compression pressure to expel spark debris; 4. Remove all spark plugs; 5. With the throttle fully open, rotate the engine crankshaft to take measurements. Precautions for testing engine cylinder pressure include: 1. Ensure the battery is fully charged and the starter is in good technical condition; 2. The engine's cooling temperature should be within the specified range; 3. The engine's lubrication conditions should be optimal; 4. When measuring each cylinder's pressure, ensure the compression stroke occurs at least 4 times; 5. During testing, stay clear of external moving parts and hot areas of the engine; 6. When removing or installing engine spark plugs, take care to prevent foreign objects from entering the engine interior.