1996 TOYOTA T100 engine

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− ENGINE MECHANICAL (5VZ−FE)EXHAUST SYSTEM
EM−109
928 Author: Date:
1996 TOYOTA T100 (RM449U)

Downloaded from www.Manualslib.com manuals search engine EC – EMISSIONS CONTROL (3RZ-FE)

EMISSION CONTROL SYSTEM EC-1
PARTS LAYOUT AND SCHEMATIC
DRAWING EC-2
POSITIVE CRANKCASE VENTILATION
(PCV) SYSTEM EC-4
EVAPORATIVE EMISSION (EVAP)
CONTROL SYSTEM EC-5
EXHAUST GAS RECIRCULATION
(EGR) SYSTEM EC-7
THREE-WAY CATALYTIC CONVERTER
(TWC) SYSTEM EC-10

Downloaded from www.Manualslib.com manuals search engine EC02N−02
− EMISSION CONTROL (3RZ−FE)EMISSION CONTROL SYSTEM
EC−1
929 Author: Date:
1996 TOYOTA T100 (RM449U)
EMISSION CONTROL SYSTEM
PURPOSE
The emission control systems are installed to reduce the amount of CO, HC and NOx exhausted from the
engine ((3), (4) and (5)), to prevent the atmospheric release of blow−by gas−containing HC (1) and evapo-
rated fuel containing HC being released from the fuel tank (2).
The function of each system is shown in these table.
SystemAbbreviationFunction
(1) Positive Crankcase Ventilation
(2) Evaporative Emission Control
(3) Exhaust Gas Recirculation
(4) Three−Way Catalytic Converter
(5) Multiport Fuel Injection *PCV
EVAP
EGR
TWC
MFIReduces HC
Reduces evaporated HC
Reduces NOx
Reduces CO, HC and NOx
Injects a precisely timed, optimum amount of fuel for reduced exhaust
emissions
Remark: * For inspection and repair of the MFI system, refer to the MF section this manual.

Downloaded from www.Manualslib.com manuals search engine EC02O−02
EC−2
− EMISSION CONTROL (3RZ−FE)PARTS LAYOUT AND SCHEMATIC DRAWING
930 Author: Date:
1996 TOYOTA T100 (RM449U)
PARTS LAYOUT AND SCHEMATIC DRAWING
LOCATION

Downloaded from www.Manualslib.com manuals search engine EC02P−02
− EMISSION CONTROL (3RZ−FE)PARTS LAYOUT AND SCHEMATIC DRAWING
EC−3
1996 TOYOTA T100 (RM449U)
DRAWING

Downloaded from www.Manualslib.com manuals search engine P05445
Cylinder Head Cover Side
Clean Hose
P05444
Air Intake Chamber Side
EC02Q−01
P15871
EC−4− EMISSION CONTROL (3RZ−FE)POSITIVE CRANKCASE VENTILATION (PCV)
SYSTEM
932 Author: Date:
1996 TOYOTA T100 (RM449U)
POSITIVE CRANKCASE
VENTILATION (PCV) SYSTEM
INSPECTION
1. REMOVE PCV VALVE
2. INSTALL CLEAN HOSE TO PCV VALVE
3. INSPECT PCV VALVE OPERATION
(a) Blow into the cylinder head cover side, and check that air
passes through easily.
CAUTION:
Do not suck air through the valve. Petroleum substances
inside the valve are harmful.
(b) Blow air into the air intake chamber side, and check that
air passes through with difficulty.
If operation is not as specified, replace the PCV valve.
4. REMOVE CLEAN HOSE FROM PCV VALVE
5. REINSTALL PCV VALVE
6. VISUALLY INSPECT HOSES AND CONNECTIONS
Check for cracks, leaks or damage.

Downloaded from www.Manualslib.com manuals search engine EC0GF−01
EC3069Check Valve (Vacuum Valve)
Gasket
− EMISSION CONTROL (3RZ−FE)EVAPORATIVE EMISSION (EVAP) CONTROL SYSTEM
EC−5
933 Author: Date:
1996 TOYOTA T100 (RM449U)
EVAPORATIVE EMISSION (EVAP)
CONTROL SYSTEM
INSPECTION
1. VISUALLY INSPECT LINES AND CONNECTIONS
Look for loosen connections, sharp bends or damage.
2. VISUALLY INSPECT FUEL TANK
Look for deformation, cracks or fuel leakage.
3. VISUALLY INSPECT FUEL TANK CAP
Check if the cap and/or gasket are deformed or damaged.
If necessary, repair or replace the cap.
4. REMOVE VSV
Remove the screw from the charcoal canister.
5. REMOVE CHARCOAL CANISTER
6. REMOVE CAP FROM CHARCOAL CANISTER
7. VISUALLY INSPECT CHARCOAL CANISTER
Look for cracks or damage.
8. INSPECT FOR CLOGGED FILTER AND STUCK
CHECK VALVE
(a) Using low pressure compressed air (4.71 kPa, 48 gf/cm
2,
0.68 psi), blow into tank pipe and check that air flows with-
out resistance from the other pipes.
(b) Blow air (4.71 kPa, 48 gf/cm
2, 0.68 psi) into purge pipe
and check that air does not flow from the tank pipe and air
flows without resistance from the other pipe.
If a problem is found, replace the charcoal canister.

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− EMISSION CONTROL (3RZ−FE)EVAPORATIVE EMISSION (EVAP) CONTROL SYSTEM
934 Author: Date:
1996 TOYOTA T100 (RM449U)
9. CLEAN FILTER IN CANISTER
Clean the filter by blowing 294 kPa (3 kgf·cm
2, 43 psi) of com-
pressed air into tank pipe while holding purge pipe closed
NOTICE:
Do not attempt to wash the canister.
No activated carbon should come out.
10. REINSTALL CAP TO CHARCOAL CANISTER
11. RECONNECT CHARCOAL CANISTER
Torque: 31 N·m (310 kgf·cm, 23 ft·lbf)
12. REINSTALL VSV