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LEMON is the spiritual successor to CHARM, I recommend you try it!
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Oxygen Sensor: Testing and Inspection
OXYGEN SENSORINSPECTION OF FEEDBACK VOLTAGE (VF) 1.CONNECT SST AND VOLTMETER.
Connect SST to the EFI check connector and connect a voltmeter to SST.
*SST 09842-14010
Connect the positive (+) probe to the red wire of the SST and negative (-) probe to the black wire.
2. WARM UP ENGINE TO NORMAL OPERATING TEMPERATURE. 3. PERFORM THE TEST AS SHOWN IN THE FLOW CHART.
