Manuals through 2025 now available!
Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.
LEMON is the spiritual successor to CHARM, I recommend you try it!
Link:
lemon-manuals.la or
lemon-manuals.org.ua
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Oxygen Sensor: Description and Operation
Fig.19 - Oxygen Sensor Sectional View:
The
oxygen sensor monitors the composition of the exhaust gases leaving the engine.
Signals from the
oxygen sensor are transmitted into a closed loop feedback system which continuously adjusts the air/fuel ratio to reduce emission of hydrocarbon (HC), carbon monoxide (CO) and nitrous gases (NOx).
The
oxygen sensor must be replaced every 30,000 miles.