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)

Or, hide this message: temporarily or permanently

Oxygen Sensor

Voltage Test - Engine Signal Monitor set to 2C (RH) or 2D (LH):
Engine condition Voltage (V)
While decelerating Approx. 0
While accelerating Above 0.8

Sensitivity test - with SST set to position 1:
Monitor Lamp: Flashes more than 8 time/10 seconds

Heated Oxygen Sensor Heater
Resistance 6.0 Ohms (20°C {68°F})