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
(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)
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Oxygen Sensor
The PCM supplies a voltage of about
450 mV between the HO2S high and low signal circuits. The
oxygen sensor varies the voltage over a range from about
1000 mV when the exhaust is rich, down through about
10 mV when exhaust is lean.