Preconditions for the test:
Engine at idle.
No faults stored.
Engine temperature above 80 °C.
Intake air temperature below 60°C
No leaks in the exhaust system.
All electrical loads switched off.
Gear selector set to P/N.
Note:
Used for system diagnosis of lambda regulation.
Procedure:
Choose the function: Lambda regulation, diagnosis.
The diagnosis status field will change from ”Test off” to ”Test on”.
Maintain the engine speed until the diagnosis status field shows ”Sys. OK! / Sys. not OK!”.