Manuals through 2025 now available!
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LEMON is the spiritual successor to CHARM, I recommend you try it!
Link:
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lemon-manuals.org.ua
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Oxygen Sensor: Testing and Inspection
1.
Run engine until normal operating temperature is reached and continue to run at idle.
2.
Disconnect electrical connector from
oxygen sensor.
3.
Attach voltmeter between
oxygen sensor side of electrical connector and ground.
4.
Increase engine speed to 1300 RPM and observe voltmeter.
5.
If voltmeter does not indicate .1---.8 volt, replace the
oxygen sensor.