Catalytic Converter Inspection - Mitsubishi 1989-1993 GALANT Service Manual

EMISSION CONTROL SYSTEMS
TSB Revision
Exhaust Gas Recirculation (EGR) System/
(4) Apply a vacuum and check for air-tightness when voltage
applied directly to the EGR solenoid when the voltage is
discontinued.
(5) Measure the resistance between the terminals of the sole-
noid valve.
Standard value: 36-44 Q [at 20°C (68"F)]
CATALYTIC CONVERTER
INSPECTION
Check for damage, cracks or fusion and replace if faulty.
Caution
1. Operation of any type, including idling, should be
avoided if engine misfiring occurs. Under this condi-
tion the exhaust system will operate at abnormally
high temperature, which may cause damage to the
catalyst or under-body parts of the vehicle.
2. Alteration or deterioration of ignition or fuel system,
or any type of operating condition which results in
engine misfiring must be corrected to avoid overheat-
ing the catalytic converters.
3. Proper maintenance and tuneup according to manu-
facturer's specifications should be made to correct the
conditions as soon as possible.
MIXTURE CONTROL (MFI) SYSTEMNI,I,w
For the inspection of mixture control (MFI) system, refer to
l
GROUP 13.
For the on-board diagnostic, refer to GROUP 13-On-board
l
Diagnostic.
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