Description And Operation
Oxygen sensor upstream of the catalytic converter BOSCH LSU 4.9 TSP
| 1. | measuring cell (Nernst cell and pumping cell) |
| 2. | protective tube |
| 3. | seal |
| 4. | sealing cover |
| 5. | casing |
| 6. | protective skirt |
| 7. | contact support |
| 8. | contact spring |
| 9. | Teflon wire-lead |
| 10. | profile hose |
| 11. | five junction wires |
| 12. | seal |
The sensor is located in the exhaust system and screwed on the exhaust pipe above the catalytic converter. The connector with a retaining gasket is linked to the control unit system, is protected from water and is equipped with a wire with a path that prevents possible contact stresses.
If the sensor falls to the ground, it must be replaced.
Lambda-type oxygen sensor downstream of the catalytic converter
| 1. | Connecting element |
| 2. | Protective sleeve |
| 3. | Flat sensor element |
| 4. | Ceramic support pipe |
| 5. | Sensor seat |
| 6. | Ceramic seal |
| 7. | Protective tube |
The oxygen sensor works on the principle of an oxygen concentration chamber with solid electrolyte.
The measurement chamber surfaces are coated with microporous layers of noble metals.
The oxygen sensor downstream of the catalytic converter is Bosch LSF4 type. 2 The oxygen sensor is used by the Engine Management Node to check the catalytic converter (post Cat) operating conditions.