Step 11: Diagnosis of oxygen sensor aging after catalytic converter: Condition
WARNING: This page is about a different car, the 2003 Audi RS 6. However, it is still accessible from the selected car via links, so may be relevant.
- Engine idling
Indicated on VAS 5051:
Fig 1: Function Display VAS 5051 - Generating Readiness Code, Diagnosis Of Oxygen Sensor Aging After Catalytic Converter (1 Of 4)
- - Enter display group
- Use keypad -2- to enter "043" for "Display group number 043" and confirm by touching Q key.
Indicated on VAS 5051:
Fig 2: Function Display VAS 5051 - Generating Readiness Code, Diagnosis Of Oxygen Sensor Aging After Catalytic Converter (2 Of 4)
- Activate basic setting by touching key -A-.
- Check display in zone -4-.
DISPLAY GROUP 043: OXYGEN SENSOR AGING AFTER CATALYTIC CONVERTER (BANK 1)
| Display zones | ||||
|---|---|---|---|---|
| 1 | 2 | 3 | 4 | |
| Display group 043: Oxygen sensor aging after catalytic converter (bank 1) | ||||
| Display | xxx rpm | xxx °C | x.xxx V | Test ON |
| Significance | Engine speed | Exhaust gas temperature | Voltage of oxygen sensor downstream of catalytic converter, bank 1 | Diagnosis status |
| Operating range | min.: 550 rpm max.: 6700 rpm |
70...850 °C | 0.0...1.0 V | Test OFF Test ON B1-S2 OK B1-S2 not OK |
| Specification | 700...790 rpm | 200...300 °C | 0.000...1.000 V | B1-S2 OK |
| Note | If "B1-S2 not OK" is displayed: Interrogate fault memory, see FAULT MEMORY, INTERROGATING AND ERASING | |||
If specification "B1 -S2 OK" is obtained in display zone 4:
- Touch > key.
- Engine idling
Indicated on VAS 5051:
Fig 1: Function Display VAS 5051 - Generating Readiness Code, Diagnosis Of Oxygen Sensor Aging After Catalytic Converter (3 Of 4)
- - Enter display group
- Use keypad -2- to enter "044" for "Display group number 044" and confirm by touching Q key.
Indicated on VAS 5051:
Fig 2: Function Display VAS 5051 - Generating Readiness Code, Diagnosis Of Oxygen Sensor Aging After Catalytic Converter (4 Of 4)
- Activate basic setting by touching key -A-.
- Check display in zone -4-.
DISPLAY GROUP 044: OXYGEN SENSOR AGING AFTER CATALYTIC CONVERTER (BANK 2)
| Display zones | ||||
|---|---|---|---|---|
| 1 | 2 | 3 | 4 | |
| Display group 044: Oxygen sensor aging after catalytic converter (bank 2) | ||||
| Display | xxx rpm | xxx °C | x.xxx V | Test ON |
| Significance | Engine speed | Exhaust gas temperature | Voltage of oxygen sensor downstream of catalytic converter, bank 2 | Diagnosis status |
| Operating range | min.: 550 rpm max.: 6700 rpm |
70...850 °C | 0.0...1.0 V | Test OFF Test ON B2-S2 OK B2-S2 not OK |
| Specification | 700...790 rpm | 200...300 °C | 0.000...1.000 V | B2-S2 OK |
| Note | If "B2-S2 not OK" is displayed: Interrogate fault memory, see FAULT MEMORY, INTERROGATING AND ERASING | |||
If specification "B2 -P2 OK" is obtained in display zone 4:
- Touch > key.
- Proceed with next step.