Evaluation test-ID 49: "Lean" -shift of oxygen sensor regulation before catalytic converter via oxygen sensor regulation behind catalytic converter
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TEST-ID 49: LEAN-SHIFT OF OXYGEN SENSOR REGULATION BEFORE CATALYTIC CONVERTER VALUES
| "Lean"-shift of oxygen sensor regulation before catalytic converter via oxygen sensor regulation behind catalytic converter | Specified value | |
|---|---|---|
| min. | max. | |
| Bank 1, sensor 1 | 0.000/s | 0.800/s |
| Bank 2, sensor 1 | 0.000/s | 0.800/s |
If the specified value is exceeded:
- Short circuit to Ground (GND) or open circuit in wiring in oxygen sensor or in wire.
- Oxygen sensor faulty
- Check Oxygen Sensors (O2S) and oxygen sensor control before Three Way Catalytic Converter (TWC). See OXYGEN SENSORS AND OXYGEN SENSOR CONTROL BEFORE CATALYTIC CONVERTER, CHECKING .
- Check Oxygen Sensor (O2S) and oxygen sensor control behind Three Way Catalytic Converter (TWC). See OXYGEN SENSORS AND OXYGEN SENSOR CONTROL BEHIND CATALYTIC CONVERTER, CHECKING .
- Mixture too rich
- Check fuel pressure regulator and residual pressure. See FUEL PRESSURE REGULATOR AND RESIDUAL PRESSURE, CHECKING .
- Check fuel injectors. See FUEL INJECTORS, CHECKING .
- Check Evaporative Emission (EVAP) canister purge regulator valve -N80-. See CHECKING EVAPORATIVE EMISSION (EVAP) CANISTER PURGE REGULATOR VALVE -N80- .