Check on downstream lambda sensor operation
- Make
- Alfa Romeo
- Model
- 147 Factory Service Manual
- Year
- 2000–2004
- Section
- Exhaust emission control system › Check on downstream lambda sensor operation
‹ Prev Check on upstream lambda sensor operationNext › Idling c.o. level - check with special equipment
EngineCheck on downstream lambda sensor operation
CHECK ON DOWNSTREAM LAMBDA SENSOR OPERATION
Disconnect the battery negative terminal
Disconnect the electrical connection for the downstream Lambda sensor
| Name | Connector | |
|---|---|---|
| Lambda sensor on pre-catalyzer | K15 |
Check that the heater's resistance corresponds to the specified value
| Measurement | Value | ||
|---|---|---|---|
| Heater resistor (ohm) | Pin 3 - 4 at 20˚C | 4.0 ± 0.5 |
‹ Prev Check on upstream lambda sensor operationNext › Idling c.o. level - check with special equipment
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