Test condition:
Engine idling.
No faults stored.
Engine temperature above 80 °C.
No leaks in the exhaust system.
All electrical loads switched off.
Note:
Used to see the lambda regulation value.
During basic setting, the AC compressor is switched off and the carbon canister valve is closed.
Procedure:
Choose the lambda regulation function.
Read off the value columns. Required result: lambda regulation (cylinder bank 1 and 2) –10 % to 10 % (must vary by at least 2%); lambda sond (cylinder bank 1 and 2) 0-1 V (must vary by about 0.3 V).
On completion of basic setting, the carbon canister valve is activated automatically.