General notes
The following diagnosis monitoring functions check the condition of the engine and exhaust emission system:
- Oxygen sensor adaptation
The purpose of oxygen sensor adaptation (mixture adaptation) is to compensate for component tolerances and ageing effects affecting the fuel-air mixture.
- Catalytic converter diagnosis
The diagnosis tests the oxygen storage capacity of the catalytic converter. The oxygen storage capacity provides an indication of the catalytic converter's conversion capability.
Ambient air is required in the interior of the monitoring sensor. The ambient air enters the interior via the plug connection through the cable. This is why the plug connection must be protected against soiling, e.g. by wax or sealant. In the event of faults in the lambda control, the plug connection on the broadband oxygen sensor must be checked for soiling.
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