1995 TOYOTA SUPRA Service Repair Manual

Page 1113 of 2543

TOYOTA SUPRA 1995  Service Repair Manual POSITIVE CRANKCASE VENTILATION
(PCV) SYSTEM
PCV VALVE INSPECTION
1.  REMOVE PCV VALVE
(a)  Disconnect the PCV hose from the PCV valve.
(b)  Remove the PCV valve.
2.  INSTALL CLEAN HOSE TO PCV VALVE
3.

Page 1114 of 2543

TOYOTA SUPRA 1995  Service Repair Manual EVAPORATIVE EMISSION (EVAP)
CONTROL SYSTEM
FUEL VAPOR LINES, FUEL TANK AND
TANK CAP INSPECTION
1.  VISUALLY INSPECT LINES AND CONNECTIONS
Look for loose connections, sharp bends or damage.
2.  VISUALL

Page 1115 of 2543

TOYOTA SUPRA 1995  Service Repair Manual (b)  Blow air (4.71 kPa (0.048 kgf/cm2, 0.68 psi)) into port A, and
check that air does not flow from the other ports.
If operation is not as specified, replace the charcoal canister.
4.  CLEAN FILTER

Page 1116 of 2543

TOYOTA SUPRA 1995  Service Repair Manual EXHAUST GAS RECIRCULATION (EGR)
SYSTEM
EGR SYSTEM INSPECTION
1.  CHECK AND CLEAN FILTER IN EGR VACUUM
MODULATOR
(a)  Remove the cap and filter.
(b)  Check the filter for contamination or damage.
(c)

Page 1117 of 2543

TOYOTA SUPRA 1995  Service Repair Manual 7.  INSPECT EGR VALVE
(a)  Apply vacuum directly to the EGR valve with the engine
idling.
(b)  Check that the engine runs rough or dies.
(c)  Reconnect the vacuum hoses to their proper locations.
IF N

Page 1118 of 2543

TOYOTA SUPRA 1995  Service Repair Manual 3.  REMOVE EGR VALVE
(a)  Disconnect these hoses from the EGR valve:
(1) Vacuum hose
(2) Pressure hose
(b)  Remove the 2 nuts, EGR valve and gasket.
4.  INSPECT EGR VALVE
Check for sticking and heavy

Page 1119 of 2543

TOYOTA SUPRA 1995  Service Repair Manual THREE±WAY CATALYTIC CONVERTER
(TWC) SYSTEM
EXHAUST PIPE ASSEMBLY INSPECTION
1.  CHECK CONNECTIONS FOR LOOSENSESS OR
DAMAGE
2. CHECK CLAMPS FOR WEAKNESS, CRACKS OR
DAMAGE
TWC INSPECTION
CHECK FOR DENT

Page 1120 of 2543

TOYOTA SUPRA 1995  Service Repair Manual COMPONENTS FOR FRONT TWC
REMOVAL AND INSTALLATION
EG±172± ENGINEEMISSION CONTROL SYSTEMS (2JZ±GE)