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 logical successor to CHARM, I recommend you try it!
Link:
lemon-manuals.la
HO2S Bank 1 Sensor 1/Bank 2 Sensor 1/Bank 1 Sensor 2
The scan tool displays 0-1132 mV. This represents the fuel control exhaust Oxygen Sensor (O2S) output voltage. The voltage should fluctuate constantly within a range between 10 millivolts and 1,000 mV, while operating in Closed Loop. Ten millivolts indicates a lean exhaust, and 1,000 mV indicates a rich exhaust.