Mazda 626

1991-1998 of release

Repair and car operation

Mazda 626

+ 1. Maintenance instruction
+ 2. Maintenance
+ 3. Engines
+ 4. Heating and ventilation
+ 5. Fuel system
- 6. Exhaust system
   + 6.1. Exhaust system
   - 6.2. Systems of decrease in toxicity of exhausts and management of operation of the engine
      6.2.1. Introduction
      6.2.2. System of self-diagnostics and malfunction codes
      6.2.3. Central control unit
      6.2.4. Sensor of provision of a butterfly valve
      6.2.5. Sensor of a stream of air
      6.2.6. The sensor of temperature of arriving air
      6.2.7. The sensor of temperature of cooling liquid
      6.2.8. Sensor of provision of a cranked shaft
      6.2.9. Sensor of provision of a camshaft
      6.2.10. Switch of system of hydrostrengthening of a steering
      6.2.11. Oxygen sensor
      6.2.12. Sensor of detonation combustion of fuel
      6.2.13. Sensor of speed
      6.2.14. Air valve
      6.2.15. System of additional supply of air on low turns
      6.2.16. System of ventilation of a case
      6.2.17. System of a retsirkulyatsiya of exhaust gases
      6.2.18. Collecting system паров fuels
      6.2.19. Switch of fires of a stoplight
      6.2.20. Catalytic converter
+ 7. Transmissions
+ 8. Coupling and semi-axes
+ 9. Brake system
+ 10. Running gear
+ 11. Body
+ 12. Electric equipment
+ 13. Electroschemes
+ 14. Good advice

6.2.18. Collecting system паров fuels


The collecting system паров fuels consists of the coal filter, the blowing-off valve and connecting hoses.


1. Check a condition of hoses and connections.
2. Disconnect a vacuum hose from the coal filter and connect a vacuum manometer. When the engine is not heated-up and idles, depression should be absent. If depression is present, probably, the blowing-off valve is faulty. Warm up the engine and check depression existence. If is not present, replace the blowing-off valve.
3. Check, that the bilateral valve located near the coal filter did not pass air.
4. Check tension giving on the blowing-off valve.
5. Check the coal filter on leak existence.


Coal filter
1. Disconnect hoses from the filter, turn off fixing bolts and remove the coal filter.
2. Installation is carried out upside-down removals.
Blowing-off valve
3. Disconnect vacuum hoses from the valve. Turn off a fixing bolt and remove the valve.
4. Installation is carried out upside-down removals.