Reducing the toxicity of the exhaust of the car Mitsubishi Galant 5

Emission Control Systems for Toxic Substances in the Atmosphere — General Information and Precautions
To reduce air pollution from incompletely burned gases and fuel vapors and to maintain good vehicle performance and fuel economy, several emission control systems are...

Positive Crankcase Ventilation (PCV) System
1. To reduce hydrocarbon emissions, blow-by gases are directed into the intake manifold to be burned in the cylinders. This is accomplished by circulating fresh air from...

Fuel vapor emission control system
1. The fuel vapor emission control system is designed to prevent the release of fuel vapor from the fuel system into the atmosphere. 2. A typical fuel vapor emission...

Heated Air Intake (HAI) System (Carbureted Models)
1. Carburetor models are equipped with a heating system of the air intake channel (HAI), which allows to lean the fuel mixture and reduces the emission of HC and CO,...

Air Injection System (1988 and Earlier Models)
1. In addition to the intake and exhaust valves, each combustion chamber has a smaller injection valve (see illustration). This valve supplies a super-lean fuel mixture...

Exhaust Gas Recirculation (EGR) System
1. The exhaust gas recirculation (EGR) system is designed to reduce the content of nitrogen oxides in the exhaust gases. The EGR system recirculates part of the exhaust...

Additional air supply system
1. The auxiliary air injection system (see illustration), fitted to all models except those fitted with MPI, supplies air to the front catalytic converter via the reed...

Catalytic converter
Note: Emission control system components are federally warranted, so check with your dealer to ensure warranty coverage is available before working on the system. 1. A...

Retarding devices (carburetor models)
Brake advance control system 1. Spark advance is increased during braking by a vacuum advance regulator mounted on the distributor. This device is normally supplied with...

Fuel mixture control valves
Models CordlaTTredla (1984 to 1986), Mirage (1985) and Precle (1987) Solenoid brake valve (DSV) 1. When the throttle valve is suddenly closed during braking, the fuel...

Idle Speed Enhancement System (Carburettor Models)
Electrical or power steering load 1. This idle speed increase system consists of a damper, a solenoid valve, an electrical load sensor and a power steering oil pump...

Altitude compensation system
Models with feedback carburetor (FBC) 1. To meet the requirements for emissions of toxic substances into the atmosphere, all models with feedback carburetors use a...

Computerized Engine Control (CEC)
1. The computer engine management system consists of three types of products (see illustration): a) Sensors (input information for ECU). b) Electronic control unit (ECU)...

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