ML 63 AMG (164.177) V8-6.3L (156.980) (2007)
Oxygen Sensor: Description and Operation
GF07.04-P-6100AMH Component Description For a O2 Sensor
GF07.04-P-6100AMH Component Description For a O2 Sensor
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O2 Sensors after cat
The O2 sensors downstream of TWC are screwed into the middle of the firewall catalytic converter.
The O2 sensors downstream of TWC are screwed in behind the firewall catalytic converter.
Task
The O2 sensors downstream of TWC (guide and diagnostic sensors) detect the residual oxygen content in exhaust gas for the following tasks:
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Two-sensor control
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Monitoring catalytic converter efficiency