Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Toyota Supra 1986-1987.1990.1995.1997 Approved Toyota Supra 1997 Emmissions
<< Back | HomeMost service manuals and schematics are PDF files, so You will need Adobre Acrobat Reader to view : Acrobat Download Some of the files are DjVu format. Readers and resources available here : DjVu Resources
For the compressed files, most common are zip and rar. Please, extract files with Your favorite compression software ( WinZip, WinRAR ... ) before viewing. If a document has multiple parts, You should download all, before extracting.
Good luck. Repair on Your own risk. Make sure You know what You are doing.
Image preview - the first page of the document
>> Download Emmissions documenatation <<
Text preview - extract from the document
EC-1
EMISSION CONTROL (2JZ-GTE) - EMISSION CONTROL SYSTEM
EMISSION CONTROL SYSTEM
EC042-01
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.
System Abbreviation Function
(1) Positive Crankcase Ventilation PCV Reduces HC
(2) Evaporative Emission Control EVAP Reduces evaporated HC
(3) Exhaust Gas Recirculation EGR Reduces NOx
(4) Three-Way Catalytic Converter TWC Reduces CO, HC and NOx
(5) Sequential Multiport Fuel Injection * SFI Injects a precisely timed, optimum amount of fuel for reduced
exhaust emissions
Remark: * For inspection and repair of the SFI system, refer to the SFI section this manual.
1997 SUPRA (RM502U)
Author : Date : 1238
EC-2
EMISSION CONTROL (2JZ-GTE) - PARTS LAYOUT AND SCHEMATIC DRAWING
PARTS LAYOUT AND SCHEMATIC DRAWING
EC043-01
LOCATION
Charcoal Canister
VSV for EGR
EGR Vacuum Modulator
EGR Valve
PCV Valve
VSV for EVAP
Check Valve
S02979
1997 SUPRA (RM502U)
Author : Date : 1239
EC-3
EMISSION CONTROL (2JZ-GTE) - PARTS LAYOUT AND SCHEMATIC DRAWING
EC044-01
DRAWING
VSV for
EVAP VSV for
EGR
Check Valve
Charcoal
Canister
EGR
Vacuum
Modulator
EGR
Valve
Heated Oxygen Sensor EGR Gas
(Bank 1 Sensor 2) Temperature
Sensor
Heated Oxygen Sensor
(Bank 1 Sensor 1) P19550
1997 SUPRA (RM502U)
Author : Date : 1240
EC-4 EMISSION CONTROL (2JZ-GTE) - POSITIVE CRANKCASE VENTILATION (PCV)
SYSTEM
POSITIVE CRANKCASE
PCV Valve VENTILATION (PCV) SYSTEM EC045-01
INSPECTION
1. REMOVE PCV VALVE
(a) Disconnect the PCV hose from the PCV valve.
(b) Remove the PCV valve.
P11798
Cylinder Head Side 2. INSTALL CLEAN HOSE TO PCV VALVE
3. INSPECT PCV VALVE OPERATION
Clean Hose (a) Blow air into the cylinder head side, and check that air
passes through easily.
CAUTION:
z Do not suck air through the valve.
z Petroleum substances inside the valve are harmful.
P11834
Air Intake Chamber Side (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
P11831
6. VISUALLY INSPECT HOSES, CONNECTIONS
AND GASKETS
Check for cracks, leaks or damage.
S00885
1997 SUPRA (RM502U)
Author : Date : 1241
EC-5
EMISSION CONTROL (2JZ-GTE) - EVAPORATIVE EMISSION (EVAP) CONTROL SYSTEM
EVAPORATIVE EMISSION (EVAP)
CONTROL SYSTEM EC046-01
INSPECTION
1. VISUALLY INSPECT LINES AND CONNECTIONS
Look for loose connections, sharp bends or damage.
2. VISUALLY INSPECT FUEL TANK
Look for deformation, cracks or fuel leakage.
B02438
3. VISUALLY INSPECT FUEL TANK CAP
Check if the cap and/or gasket are deformed or damaged.
If necessary, repair or replace the cap.
Gasket
Check Valve (Vacuum Valve)
EC3069
4. REMOVE CHARCOAL CANISTER
P12150
5. VISUALLY INSPECT CHARCOAL CANISTER
Look for cracks or damage.
P12175
Port C 6. CHECK FOR CLOGGED FILTER AND STUCK CHECK
VALVE
Compressed
Air (a) Using low pressure compressed air (4.71 kPa (48 gf/cm2,
Air
Air 0.68 psi)), blow into port C and check that air flows without
resistance from the other ports.
Air Z16768
1997 SUPRA (RM502U)
Author : Date : 1242
EC-6
EMISSION CONTROL (2JZ-GTE) - EVAPORATIVE EMISSION (EVAP) CONTROL SYSTEM
(b) Blow air (4.71 kPa (48 gf/cm2, 0.68 psi)) into port A, and
Port A
check that air does not flow from the other ports.
Compressed
Air
Z16769
(c) Blow air (4.71 kPa (48 gf/cm2, 0.68 psi)) into port B, and
Port B
check that air does not flow from the other ports.
Compressed
If operation is not as specified, replace the charcoal canister.
Air
Z16770
Port B 7. CLEAN FILTER IN CANISTER
Port A Port C Clean the filter by blowing 294 kPa (3 kgf/cm2, 43 psi) of com-
Compressed pressed air into port C while holding port A and B closed.
Air NOTICE:
z Do not attempt to wash the canister.
z No activated carbon should come out.
8. REINSTALL CHARCOAL CANISTER
9. INSPECT VSV FOR EVAP
Z16771 (See page SF-71 )
10. REMOVE CHECK VALVE
Check Valve
P12318
11. INSPECT CHECK VALVE
(a) Check that air flows from the blue port to the black port.
(b) Check that air does not flow from the black port to the blue
Blue Port port.
Black Port
If operation is not as specified, replace the check valve.
12. REINSTALL CHECK VALVE
HINT:
Install the check valve with the black port facing the purge port
Z09444 side of the throttle body.
1997 SUPRA (RM502U)
Author : Date : 1243
EC-7
EMISSION CONTROL (2JZ-GTE) - EXHAUST GAS RECIRCULATION (EGR) SYSTEM
Cap EXHAUST GAS RECIRCULATION
Filter (EGR) SYSTEM EC047-02
INSPECTION
1. CHECK AND CLEAN FILTER IN EGR VACUUM
MODULATOR
(a) Remove the cap and 2 filters.
(b) Check the filter for contamination or damage.
S02980
(c) Using compressed air, clean the filter.
(d) Reinstall the 2 filters and cap.
HINT:
Vacuum Gauge
Install the filter with the coarser surface facing the atmospheric
side (outward).
2. INSTALL VACUUM GAUGE
Using a 3-way connector, connect a vacuum gauge to the hose
between the EGR valve and EGR vacuum modulator.
3. INSPECT SEATING OF EGR VALVE
Start the engine and check that the engine starts and runs at
S02981
idle.
4. INSPECT VSV OPERATION WITH COLD ENGINE
(a) M/T
The coolant temperature should be below 50◦ Jabse Service Manual Search 2024 ◦ Jabse Pravopis ◦ onTap.bg ◦ Other service manual resources online : Fixya ◦ eServiceinfo