What are the steps for cylinder pressure testing?

[Isaiah]

Cylinder pressure testing steps: 1. Install the cylinder pressure gauge on the engine; 2. Warm up the engine to normal operating temperature, maintaining coolant temperature between 85 to 95 degrees; 3. Remove all spark plugs or injectors from the vehicle and ground the high-voltage wires; 4. Press the accelerator to fully open the throttle; 5. Screw the threaded adapter into the spark plug hole, or press the tapered rubber adapter of the cylinder pressure gauge firmly into the spark plug hole of the cylinder being tested; 6. Operate the starter for about two seconds, read the pressure value once the pointer stabilizes, then press the one-way valve button to release pressure and reset the pointer. Note: Each cylinder should be measured at least twice, taking the average value as the result. Additionally, during the second measurement, inject a small amount of engine oil (20-30ml) into the spark plug hole before retesting the cylinder pressure.