Cylinder compression

The test shows if there is any deviation in the compression pressure for any cylinder in relation to the other cylinders.
The engine should be warm for the test result to become correct.
Note:
If the gas pressure is higher than 170 kPa, start the engine with the tap to the tank line closed, and run the engine until it stops.
After the test is finished the start key must be turned to position 0 and back to driving position to enable repeat of the test or to enable engine start.
Test conditions:
Procedure:
  1. Start the function.
  2. Check test conditions and press "OK".
  3. Press "OK" and turn the key to start position.
  4. Hold the key in start position until the final result is shown.
  5. Check the result and press "OK".
  6. Function done.