Decreased vehicle exhaust emissions Mitsubishi Colt 5 (CJ)

Supply and emission control systems (4G1 since 1995)
The power supply and emission reduction systems for SOHC engines with a carburetor are shown in fig. 3.13 SOHCco engines with MPI injection (on front-wheel drive models...

Fuel system and emission control for SOHC engines (4G9)
The fuel system and the exhaust emission control system of SOHC engines with a carburetor are shown in fig. 4.7, and those of SOHC engines with MPI injection are shown...

Exhaust emission control system for 4G1 and 4G9 engines
General information The exhaust gas emission reduction system consists of the following subsystems: crankcase ventilation systems; hot mix preparation systems; exhaust...

Engine ventilation system
General information The crankcase ventilation system prevents exhaust gases from entering the atmosphere. Fresh air is directed through the air filter through the...

Checking the crankcase ventilation valve
1. Disconnect the vent tube from the crankcase ventilation valve. 2. Remove the crankcase ventilation valve from the cylinder head cover. 3. Reconnect the crankcase...

Gasoline vapor recovery system
General information The system of preparation of a combustible mixture prevents the ingress of gasoline vapors formed in the fuel tank into the atmosphere. Fuel vapors...

Checking the purge air management system
1. Vacuum tube (with red stripes) disconnect from throttle body and connect to vacuum pump (pic. 6.7a,b). Pic. 6.7a. Checking the purge air control system on 4G1 and 4G9...

Checking the purge solenoid valve
Attention! Before removing, put a label on the vacuum hose so as not to confuse it in the future. 1. Disconnect the vacuum hoses (with black and red stripes) from the...

Exhaust gas recirculation system
General information Exhaust gas recirculation system reduces nitrogen oxide emissions (NOx). If the combustion temperature of the air-fuel mixture is high, then a large...

Checking the exhaust gas recirculation system of the 4G1 engine
1. Disconnect the vacuum tube (with green stripe) from the throttle body and connect to the vacuum pump (pic. 6.12). Pic. 6.12. Checking the exhaust gas recirculation...

Checking the exhaust gas recirculation system of the 4G9 engine
1. Disconnect the vacuum tube (with green stripe) from the EGR solenoid valve and connect to a hand vacuum pump (pic. 6.13). Pic. 6.13. Check the vacuum on a cold and...

Exhaust gas recirculation valve test
1. Remove the valve of the EGR system and check its capacity, absence of carbon deposits, etc. If necessary, clean the valve with a suitable solvent to ensure that the...

Throttle cable and accelerator pedal
The throttle control cable and the accelerator pedal are shown in fig. 6.16. Pic. 6.16. Throttle cable and accelerator pedal: 1 - Adjusting bolt; 2 - Cable connector (to...

Emission control system since 2001
4G1 engine 1. The purge air control solenoid valve has changed to a load sharing valve and the purge air inlet is no longer in front of the throttle but behind it. In...