The device, service, repair Vektr's Opel And - 8.2. System of decrease in toxicity of exhaust gases//1988-1995 /

Opel Vectra A

since 1988-1995 release

Repair and operation of the car



Vektr's Opel And
+ 1. Maintenance instruction
+ 1.1 Maintenance
+ 2. Engine
+ 3. Repair of DOHC engines
+ 4. Repair of the diesel engine
+ 5. Cooling system
+ 6. Fuel system
+ 7. The fuel and exhaust system of models with system of injection of fuel
- 8. Exhaust system and system of decrease in toxicity of exhaust gases
   8.2. System of decrease in toxicity of exhaust gases
   8.3. System of repeated combustion of exhaust gases (EGR)
   8.4. The EGR valve (models with the Multec system)
   8.5. EGR valve (Simtec system)
   8.6. EGR module (X16 SZ models)
   8.7. Knot of the air pump (Simtec system)
   8.8. Valve of a cut-off of system of reduction of toxicity
   8.9. The switching-off valve of system of reduction of toxicity
   8.10. Tube and unidirectional valve of system of reduction of toxicity
   8.11. Catalyst
   8.12. A canister with coal
   8.13. The oxygen sensor (models with the catalyst)
   8.14. Final collector
   + 8.15. Exhaust system
+ 9. Fuel systems of the diesel engine
+ 10. Engine electrical systems
+ 11. Transmission
+ 12. Mechanical transmission
+ 13. Automatic transmission
+ 14. Power shafts
+ 15. Brake system
+ 16. Suspension bracket
+ 17. Body
+ 18. Electric equipment
+ 19. Check of malfunctions



8.2. System of decrease in toxicity of exhaust gases

GENERAL INFORMATION

MULTEC system

The system of catching of vapors of fuel is intended for reduction of number of emissions in the atmosphere of nesozhzheny hydrocarbons.

The fuel system of the car is tight and vapors of fuel gather in the canister with charcoal located under the right forward wing. Vapors of fuel are stored in a canister and at start of the engine get to the highway of air supply in the engine and are burned up in engine cylinders. On models with C16 NZ, C16 NZ2 and C18 NZ engines the adjusting valve opens due to depression by the transferred vacuum tube connected to the throttle case. On models with the C16 SZ engine the valve opens electric signals from the valve of cleaning installed on a cover of a head of the block of cylinders.

MOTRONIC system

Detachment of the electric socket from the valve of ventilation of the fuel tank
The system of decrease in toxicity of exhaust Motronic gases is similar described in section 7 except that the coal filter is run by the block of a control system of the engine via the ventilation valve located in the fuel tank. During the operation of the cold engine or heated-up engine on idling turns for protection of the catalyst against the reenriched fuel mix the valve does not open until the engine does not begin to work under loading. At the same time on a winding of the valve tension moves and fuel vapors pass to the highway of air supply in the engine.

On C20 NE engines the valve of ventilation is installed over nozzles of cylinders 2 and 4. For removal of the valve remove a weight wire from the accumulator and the electric socket from the valve, then mark and disconnect two hoses of ventilation. Remove the valve from an arm or unscrew an arm and remove it together with the valve.

On C20 XE engines the valve of ventilation is located on the left side of the engine under a plait of wires of fuel nozzles (see the drawing). Removal of the valve of ventilation is made in the same way, as well as for the C20 NE engine.

SIMTEC system

The system of decrease in toxicity of exhaust Simtec gases is similar described in section 7.