BMW 3 Series E30

since 1983-1994 release

Repair and operation of the car



BMW E30
+ 1. Maintenance instruction
+ 2. Maintenance
+ 3. Engine
+ 4. Cooling system
+ 5. Heating and ventilation
+ 6. Fuel system
- 7. Exhaust system
   + 7.1.2. Exhaust system of cars 318i
   - 7.2. System of decrease in toxicity of exhaust gases
      7.2.2. Self-diagnostics of system of injection of Motronic
      7.2.3. Processor block (ECU block)
      7.2.4. Sensors of system of automatic control of the engine
      7.2.5. System of compulsory ventilation of a case (PCV system)
      7.2.6. System of catching of vapors of gasoline (EVAP system)
      7.2.7. Catalytic converter
+ 8. Transmissions
+ 9. Coupling
+ 10. Brake system
+ 11. Running gear
+ 12. Body
+ 13. Electric equipment
+ 14. Useful tips



7.2. System of decrease in toxicity of exhaust gases

7.2.1. Introduction

GENERAL INFORMATION

Are a part of system of decrease in toxicity of the considered cars:

 – catalytic converter;
 – system of catching of vapors of gasoline (EVAP system);
 – system of compulsory ventilation of a case (PCV system);
 – system of automatic control of the engine.

The device of system depends on a car complete set. Before drawing a conclusion on malfunction of system of decrease in toxicity, carefully check work of fuel system (see subsection 6.3) and systems of ignition (see subsection 3.3.6.2). For diagnostics of some devices of system certain skills, and also special tools and the equipment are required. If it becomes clear that check and repair of system cannot be executed independently, then address in a workshop of car service of the dealer or in a specialized workshop.