Toyota Corolla

1992-1998 of release

Repair and car operation

Toyota Corolla
+ 1. Maintenance instruction
+ 2. Maintenance
+ 3. Engines
+ 4. Systems of cooling, heating
+ 5. Fuel, exhaust systems
- 6. System of decrease in toxicity
   6.1. Specifications
   6.2. Electronic control system
   6.3. Electronic control unit
   + 6.4. System of onboard diagnostics
   + 6.5. Sensors of system of automatic control of the engine
   6.6. Catching system паров gasoline
   6.7. System retsirkulyatsiya (EGR system)
   6.8. System of compulsory ventilation of a case (PCV system)
   6.9. Catalytic converter
+ 7. Transmissions
+ 8. Coupling and semi-axes
+ 9. Brake system
+ 10. Suspension bracket and steering
+ 11. Body
+ 12. Electric equipment

6.9. Catalytic converter


For decrease in emissions in the atmosphere of hydrocarbons, carbon monoxide and nitrogen oxides all cars considered in the management, are equipped with the converter with the single-layered catalyst providing at the expense of oxidation-reduction reactions decomposition of specified three components, turning them in harmless nitrogen, carbon dioxide and water.

The catalytic converter is mounted in an exhaust system, its fastening does not differ almost from exhaust silencer fastening.


1. Periodically check a condition of flange fastenings of the converter to an exhaust pipe. Be convinced of reliability of an inhaling of bolts and in absence of leakage of gases in a joint place.
2. Before an otvorachivaniye of bolts of fastening of the converter (are specified by shooters) surely dig in them getting liquid.
3. Check integrity of a guard of the converter. If on a guard there are dents or deformations because of which the guard concerns the converter case, repair or replace a guard.
4. Check integrity of the heatinsulating screen (1). Be convinced that between the screen and the converter there is a necessary interval.


Procedure of replacement is described in subsection 5.13.