Sensor O2cconnectors swapped, ME-SFI fault code description - AD07.61-P-4000-72L

		At least two O2 sensor connectors upstream TWC have been swapped
1	Fault code ( Readout on generic scan tool)	P2090 (-)
2	Fault storage	After expiry of test duration and fault
	Activation of the engine diagnosis indicator lamp (EURO3/4) or CHECK ENGINE (MIL) malfunction indicator lamp	No activation
3	Checking frequency	Continuous
4	Checked signal or status	Closed-loop mixture control
5	Fault setting conditions	The Lamda controls for the swapped O2 sensors move in an opposite direction up to the enrichment or lean stop. If they remain above the limit values for longer than 15 s, a fault is detected.
6	Check prerequisites	Enable the affected Lambda controls.
6		For the swapped O2 sensor connectors, self-adaptation of the mixture formation and actuation of the purge control valve are blocked.