Mitsubishi 3000GT 1991, Service Manual

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EMISSION CONTROL Specifications Troubleshooting
GENERAL SPECIFICATIONS
Items
Crankcase emission control system
Specifications
Closed type with positive crankcase ventilation
valve
Evaporative emission control system Canister storage type
Canister
Charcoal type
Purge control solenoid valve
ON/OFF solenoid valve
Exhaust emission control system
Exhaust gas recirculation system
EGR valve Vacuum-activated diaphragm type
EGR temperature sensor <California> Thermistor type
EGR control solenoid valve <California Non Turbo, Turbo> Duty cycle solenoid valve
Catalytic converter Monolith type
Location <Non-Turbo> Under floor
<Turbo> Turbocharger outlet (front bank and rear bank,)
and under floor
SERVICE SPECIFICATIONS
Items Specifications
Purge control solenoid valve coil resistance
36 44
[at 20°C
EGR temperature sensor resistance
60 83
[at 50°C
11
14
[at 100°C
EGR control solenoid valve coil resistance 36 44
[at
I
Symptom
Engine will not start
or hard to start
Rough idle or engine
stalls
Probable cause
Vacuum hose disconnected or damaged
The EGR valve is not closed
Malfunction of the purge control solenoid valve
The EGR valve is not closed
Vacuum hose disconnected or damaged
Malfunction of the positive crankcase ventilation
valve
Remedy
or replace
Repair or replace
or replace
Repair or replace
Repair or replace
Replace
Malfunction of the purge control system Check the system; if there is a
problem, check its component parts
Engine hesitates or
acceleration
oil
Malfunction of the exhaust gas recirculation
system
Positive crankcase ventilation line clogged
Check the system; if there is a
problem, check its component parts
Check positive crankcase
tion system
fuel mileage Malfunction of the exhaust gas recirculation
system
TSB Revision
Check the system; if there is a
problem, check its component parts