Preconditions for the test:
Engine running.
No faults stored.
Engine temperature above 80 °C.
Induction air temperature below 60 °C.
No leaks in the exhaust system.
All electrical loads switched off.
Note:
Used for system diagnosis of lambda regulation.
Procedure:
Choose the function: Lambda regulation, diagnosis.
Keep the engine speed between 1800 and 2200 rpm.
The diagnostic status field will change from ”Test off” to ”Test on”.
Maintain the engine speed until the diagnostic status field shows ”Sys. OK! / Sys. not OK!”.