1. Start the engine and warm it up to normal operating temperature. |
2. Leave the engine running at idle speed. |
3. Connect a voltmeter between terminals 1 (wire LG / R) and ground. |
4. Several times increase and decrease the speed of the engine. |
| 5. Verify that the voltage varies 0-1,0V. |
A warning The voltage at the rear oxygen sensor does not change as quickly as the front sensor.
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6. Otherwise, check:
- On-board diagnostics system; - System; - The vacuum in the intake manifold; - The pressure of the fuel. |
7. If all systems are normal, replace the oxygen sensor. |