Vehicle Emissions Reduction Mitsubishi Colt 2 and 3

General information about emission control systems
To prevent pollution of the atmosphere by unburned exhaust gases and to save fuel, the following systems are installed on the vehicle: Crankcase ventilation system Fuel...

Fuel vapor collection system
3.1a Elements of the fuel vapor collection system of models with a carburetor engine 1. Air filter; 2. Float chamber ventilation valve; 3. To temperature valve; 4....

Intake air temperature control system (with carburetor)
4.1 Intake air temperature control system: When the engine is cold, the choke is open and hot air from the exhaust manifold enters the carburetor 1. Vacuum diaphragm; 2....

Air Injection System (1988 and Earlier Models)
5.1 The injection valve (indicated by the arrow) admits a very rarefied mixture into the combustion chamber 1. Fuel mixture; 2. Fuel intake stroke 1. In addition to the...

Exhaust gas recirculation system
1. The system serves to reduce the content of nitrogen oxide in the exhaust gases. It collects part of the exhaust gases from the exhaust manifold and directs them to...

Additional air supply system
7.1 Elements of the additional air supply system 1. Solenoid valve; 2. Electronic control unit; 3. Engine speed sensor; 4. Coolant temperature sensor; 5. Idle speed...

Catalytic converter
8.1 Some models have two catalytic converters, other models only one 1. Front catalytic converter; 2. Rear converter 1. The catalytic converter is installed in the...

Devices used when reducing engine speed
System for increasing the ignition timing angle when the engine speed decreases 1. To increase the ignition timing angle when the engine speed decreases, a vacuum...

Fuel mixture control valves (with carburetor)
Cordia/Tredia (1984-1986), Colt, Lancer, Mirage (1985) and Precis (1987) Fuel shut-off valve 13.1a Carburetor Engine Feedback System - Early Models 1. Damper; 2. Fast...

Fast idle system (with carburetor)
System for increasing idle speed when electrical equipment or power steering system is turned on 11.1 Elements of the system for increasing engine speed when electrical...

Low atmospheric pressure compensation system
Models with carburetor engine 1. The system consists of a compensation valve, a vacuum valve, a control valve and a distributor with a vacuum corrector. 2. To compensate...

Electronic engine management system
13.1a Carburetor Engine Feedback System - Early Models 1. Damper; 2. Fast idle system diaphragm; 3. Fast idle speed solenoid valve; 4. For models with 4-speed manual...

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