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Home >> Mazda >> 1995 >> Millenia V6-2255cc 2.3L DOHC >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Oxygen Sensor >> Testing and Inspection >> With SST-New Generation Star Tester
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With SST-New Generation Star Tester

Using SST-New Generation Star Tester (NGS)




1. Connect the SST to the data link connector-2.




2. Select the PID/DATA MONITOR AND RECORD function of NGS.
3. Select "HO2SRF", "HO2SRR", "HO2SLF" and "HO2SLR" on the NGS display. NGS measures and shows the voltage.

Specification:




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

Inspection
Heater
1. Disconnect the heated oxygen sensor connector.

Front HO2S:




Rear HO2S:




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

Specification: Approx. 6 ohms 20°C (68°F)

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