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
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For models with the 6-cylinder engine.
This system consists of two vacuum diaphragms (the first is located near the inlet collector, the second – behind the butterfly valve case), two electromagnetic valves and three additional butterfly valves two of which are connected together.
| PERFORMANCE ORDER |
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| Warm up the engine. Open for a second a butterfly valve and check, that drafts of vacuum diaphragms (arrow) moved when opening butterfly valve. If is not present, check a condition of vacuum hoses. |
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VACUUM DIAPHRAGMS
Check
| PERFORMANCE ORDER |
| By means of the vacuum pump create depression on vacuum diaphragms. Check, that at depression creation on a diaphragm, draft of a diaphragm was involved. If is not present, replace a diaphragm. |
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Replacement
| PERFORMANCE ORDER |
| 1. Disconnect a vacuum hose from a diaphragm. Disconnect draft from a zaslonka, turn off fixing bolts and remove a diaphragm. |
| 2. Installation is carried out upside-down removals. |
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ELECTROMAGNETIC VALVES
Check
| PERFORMANCE ORDER |
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1. Disconnect a vacuum hose from the valve and blow in V.Vozdukh's branch pipe should pass through the valve (C). |
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2. Submit tension of the accumulator on plugs of the valve and again blow in V.Vozdukh's branch pipe there should be A.Zamenite's branch pipe a valve if it is faulty. |
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Replacement
| PERFORMANCE ORDER |
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1. Disconnect vacuum hoses and the socket of connection of the valve. Remove the valve from a fixing arm. |
| 2. Installation is carried out upside-down removals. |
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VACUUM HOSES
Check
| PERFORMANCE ORDER |
| Chambers are located under an inlet collector. Remove chambers and examine them on existence of cracks or damages. |
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Replacement
| PERFORMANCE ORDER |
| 1. Remove an inlet collector. |
| 2. Disconnect vacuum hoses from chambers, turn off fixing bolts and remove chambers. |
| 3. Installation is carried out upside-down removals. |
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