Description of work
The secondary air supply system is switched on for a short time when starting a cold engine and pumps atmospheric air into the exhaust tract. This enriches the exhaust gas with oxygen, providing afterburning of unburned hydrocarbons and accelerated heating of the catalyst.
List of parts and assemblies of the secondary air supply system with technological notes on repair for the BGU engine to figure VC2.231:
1 Combination valve.
2. EGR valve screw: 25 Nm.
3. EGR valve (N18) with exhaust gas recirculation potentiometer (G212).
4. Valve bracket screw: 10 Nm.
5. O-ring.
6. Discharge hose:
- Squeeze the ring to unlock.
7. Secondary air pump intake duct.
8. Direction to the air filter.
9. Secondary air pump motor (V101).
10. Connector 2-pin.
11. Nut for fastening the pump to the bracket: 10 Nm.
12. Screw securing the bracket to the engine: 25 Nm.
13. Screw securing the bracket to the engine: 15 Nm.
14. Secondary air pump motor bracket (V101):
- installed on the intake manifold.
15. The lower part of the intake manifold.
16. Combination valve screw: 10 Nm.
17. Gasket:
- when assembling, replace with a new one.
18. Combination valve connection.
List of parts and assemblies of the secondary air supply system with technological repair notes for the BSE engine to figure VC2.232:
1. Combination valve.
2. Combination valve bracket screw: 10 Nm.
3. O-ring.
4. Discharge hose:
- Squeeze the ring to unlock.
5. Secondary air pump intake duct..
6. Direction to the air filter.
7. Secondary air pump motor (VI01).
A. Connector 2-pin.
9. Nut for fastening the pump to the bracket: 10 Nm.
10. Screw securing the bracket to the engine: 25 Nm.
11. Screw for fastening the bracket to the engine: 15Nm.
12. Secondary air pump motor bracket (V101):
- installed on the intake manifold.
13. The lower part of the intake manifold.
14. Combination valve screw: 10 Nm.
15. Gasket:
- when assembling, replace with a new one.
16. Combination valve connection.
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