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
If it fails:
lemon-manuals.org.ua
Or, hide this message:
temporarily or
permanently
Oxygen Sensor: Description and Operation
The heated oxygen sensors
(HO2S):
-
are located in the exhaust system
-
react with the oxygen in the exhaust gases and generate a voltage based on this reaction.
A low voltage indicates too much oxygen or a lean condition.
A high voltage indicates not enough oxygen or a rich condition.