The compression control sequence is for a 2.0L engine.
1. Raise the hood.
2. Remove nozzles.
3. Unscrew the wiper fluid reservoir, disconnect it and set it aside.
4. 2.0L engine: To prevent fuel from being injected when the engine is turned with the starter, the stop lever (arrow) must be set to position "stop". To do this, connect a vacuum pump to the tank (arrow) fuel pump. Create a vacuum in the tank of about 400 mbar and maintain it during the entire time of compression control.
5. Rotate the engine several times with the starter to remove carbon and soot.
Attention! Set the transmission to idle and apply the parking brake. Do not lean over the engine while cranking: risk of accident!
6. Screw in the compression gauge (01) with link element (02) and connection details (03) in place of the injector in the prechamber of the cylinder to be checked.
7. Have an assistant press the accelerator pedal all the way down and hold it during the test.
8. Turn the engine about 9 revolutions until the pressure on the gauge stops rising.
9. Remove the value of the controlled value and sequentially check the compression in all other cylinders. Then compare the measured values with the nominal values. Keep in mind that the measurement results also depend on the compression gauge used. If the compression pressure in one or more cylinders is below the minimum, then the tightness of the cylinder should be checked.
10. Unscrew the compression gauge (02) and install injectors with new gaskets.
11. Remove the vacuum pump.
12. Install the wiper fluid reservoir and secure with bolts.
13. Lower the engine hood.
Features of 2.2/2.5L engines
1. Remove the air filter cross tube.
2. Unscrew head cover cover (4).
3. Remove nozzle (18) with fuel injection pipes (17).
4. Compressometer (01) screw, according to the operating instructions, using the connecting piece (02) to the prechamber. Install new chart paper (03).