With SST-New Generation Star Tester

HEATED OXYGEN SENSOR
Inspection Using SSTs (NGS):




1. Connect the SSTs (NGS) to the data link connector 2 located under the driver side dashboard.




2. Select the "PID/DATA MONITOR AND RECORD" function on the NGS display.
3. Select "FHO2S", and "RHO2S", on the NGS display. NGS measures and shows the voltage.




4. If not as specified, inspect following.
- Intake-air system
- Fuel system
- On-Board diagnostic system
If these systems are OK, replace the heated oxygen sensor.

Heater Inspection:
1. Disconnect the heated oxygen sensor connector.







2. Measure the resistance between heated oxygen sensor terminals C and D by using an ohmmeter.

Specification: Approx. 13 Ohms @ 20 °C (68 °F)

3. If not as specified, replace the heated oxygen sensor.