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: Testing and Inspection
1.
Start and operate engine until coolant reaches normal operating temperatures.
2.
Disconnect
oxygen sensor connector, then connect a suitable voltmeter to connector.
3.
While racing engine, measure
oxygen sensor output voltage. Voltage should be approximately 1 volt.