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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HO2S 2
The scan tool range is
0-1275 mV. The rear
HO2S 2 represents the exhaust oxygen output voltage beyond the
catalytic converter. This voltage will remain inactive or appear lazy within a range
100 mV (lean exhaust) and
900 mV (rich exhaust) when the system is operating in closed loop.