P20A2

An inlet valve of a cylinder is not operated although the CSO is switched off.

Test 1: Test rocker arm coupling of inlet valves.

1. Test rocker arm coupling of inlet valves.
The rocker arm coupling of an inlet valve does not lock although the CSO is switched off.Possible cause and remedy

- Replace faulty rocker arm(s).
Note

- The fault P20A2 can only be detected by analysing smooth engine running in the upper engine load and speed range.
End of test