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

6.2.14. Air valve

GENERAL INFORMATION

Arrangement of the air valve of system of idling (model with the 4-cylinder engine)

Arrangement of the air valve of system of idling (model with the 6-cylinder engine)

The air valve supervises supply of air in the engine idling, regulating, thus, speed of idling.

Check

PERFORMANCE ORDER

1. Connect a tachometer. Start the engine and lift number of turns to 3000. Wait while to join the fan of cooling of a radiator and measure speed of operation of the engine idling (all electric equipment of the car should be switched off). If speed of idling too low, disconnect the socket of connection of the air valve. Speed of operation of the engine should start to fluctuate after a detachment of the socket of connection of the valve. If is not present, possibly, the valve is faulty.

2. Measure resistance between valve plugs. It should make 7,7–9,3 Ohm (models with the four-cylinder engine), 10,7–12,3 Ohm (models with the six-cylinder engine of 1993-1997 of release) or 8,7–10,5 Ohm (models with the six-cylinder engine of 1998 of release). Replace the valve if it is necessary.

Replacement

PERFORMANCE ORDER

1. Disconnect the socket of connection of the valve, turn off fixing screws and remove the valve.

2. Installation is carried out upside-down removals. Replace a sealing ring of the valve.