1995 TOYOTA SUPRA sensor

1. CONTINUITY CHECK (OPEN CIRCUIT CHECK)
(1) Disconnect the connectors at both ECU and sensor sides.
(2) Measure the resistance between the applicable terminals of
the connectors.
Resistance: 1
or less
HINT:
wMeasure the resistance while lightly shaking the wire
harness vertically and horizontally.
wWhen tester probes are inserted into a connector, insert
the probes from the back. For waterproof connectors in
which the probes cannot be inserted from the back, be
careful not to bend the terminals when inserting the
tester probes.
2. RESISTANCE CHECK (SHORT CIRCUIT CHECK)
(1) Disconnect the connectors at both ends.
(2) Measure the resistance between the applicable terminals of
the connectors and body ground. Be sure to carry out this
check on the connectors on both ends.
Resistance: 1 M
or higher
HINT: Measure the resistance while lightly shaking the wire
harness vertically and horizontally.
3. VISUAL CHECK AND CONTACT PRESSURE CHECK
(a) Disconnect the connectors at both ends.
(b) Check for rust or foreign material, etc. on the terminals of the
connectors.
(c) Check crimped portions for looseness or damage and check
if the terminals are secured in the lock position.
HINT: The terminals should not come out when pulled lightly.
(d) Prepare a test male terminal and insert it in the female
terminal, then pull it out.
HINT: When the test terminal is pulled out more easily than
others, there may be poor contact in that section.
± INTRODUCTIONHOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMSIN±31

GLOSSARY OF SAE AND TOYOTA TERMS
This glossary lists all SAE±J1930 terms and abbreviations used in this manual in compliance with SAE
recommendations, as well as their Toyota equivalents.
 
 
SAE ABBREVI±
ATIONS 
 SAE TERMS
 
 
TOYOTA TERMS
( ) ±± ABBREVIATIONS
 A/C Air Conditioning Air Conditioner
 ACL Air Cleaner Air Cleaner
AIRSecondary Air InjectionAir Injection (AI) AP Accelerator Pedal ± B+ Battery Positive Voltage +B, Battery Voltage BARO Barometric Pressure ±
 CAC Charge Air Cooler Intercooler
 CARB Carburetor Carburetor
 CFI Continuous Fuel Injection ±
 CKP Crankshaft Position Crank Angle
CLClosed LoopClosed Loop CMP Camshaft Position Cam Angle CPP Clutch Pedal Position ±
 CTOX Continuous Trap Oxidizer ±
 CTP Closed Throttle Position Idle ON (IDL ON)
 DFI Direct Fuel Injection (Diesel) Direct Injection (DI)
 DI Distributor Ignition ±
 
 
DLC1
DLC2
DLC3 
 
Data Link Connector 1
Data Link Connector 2
Data Link Connector 3 
 
1: Check Connector
2: Toyota Diagnosis Comunication Link (TDCL)
3: OBD II Diagnostic Connector
 DTC Diagnostic Trouble Code Diagnostic Code
 DTM Diagnostic Test Mode ±
 ECL Engine Control Level ±
 ECM Engine Control Module Engine ECU (Electronic Control Unit)
 ECT Engine Coolant Temperature Coolant Temperature, Water Temperature
(THW)
 
 
 
 
EEPROM
 
 
 
 
Electrically Erasable Programmable Read Only
Memory
 
 
 
 
Electrically Erasable Programmable Read Only
Memory (EEPROM),
Erasable Programmable Read Only Memory
(EPROM)
 
 
EFE 
 
Early Fuel Evaporation 
 
Cold Mixture Heater (CMH), Heat Control Valve
(HCV)
EGRExhaust Gas RecirculationExhaust Gas Recirculation (EGR) EI Electronic Ignition Toyota Distributorless Ignition (TDI) EM Engine Modification Engine Modification (EM) EPROM Erasable Programmable Read Only Memory Programmable Read Only Memory (PROM)
 EVAP Evaporative Emission Evaporative Emission Control (EVAP)
 FC Fan Control ±
 FEEPROM Flash Electrically Erasable Programmable
Read Only Memory ±
 
 FEPROM
 
 Flash Erasable Programmable Read Only
Memory 
 ±
 FF Flexible Fuel ±
 FP Fuel Pump Fuel Pump
 GEN Generator Alternator
 GND Ground Ground (GND)
HO2SHeated Oxygen SensorHeated Oxygen Sensor (HO2S)
± INTRODUCTIONGLOSSARY OF SAE AND TOYOTA TERMSIN±39

 IAC Idle Air Control Idle Speed Control (ISC)
IATIntake Air TemperatureIntake or Inlet Air Temperature ICM Ignition Control Module ± IFI Indirect Fuel Injection Indirect Injection IFS Inertia Fuel±Shutoff ±
 ISC Idle Speed Control ±
 KS Knock Sensor Knock Sensor
 MAF Mass Air Flow Air Flow Meter
 MAP Manifold Absolute Pressure Manifold Pressure
Intake Vacuum
 
 
 
MC
 
 
 
Mixture Control
 
 
 
Electric Bleed Air Control Valve (EBCV)
Mixture Control Valve (MCV)
Electric Air Control Valve (EACV)
 MDP Manifold Differential Pressure ±
 MFI Multiport Fuel Injection Electronic Fuel Injection (EFI)
MILMalfunction Indicator LampCheck Engine Light MST Manifold Surface Temperature ± MVZ Manifold Vacuum Zone ± NVRAM Non±Volatile Random Access Memory ±
 O2S Oxygen Sensor Oxygen Sensor, O2 Sensor (O2S)
 OBD On±Board Diagnostic On±Board Diagnostic (OBD)
 OC Oxidation Catalytic Converter Oxidation Catalyst Converter (OC), CCo
OPOpen LoopOpen Loop PAIR Pulsed Secondary Air Injection Air Suction (AS) PCM Powertrain Control Module ± PNP Park/Neutral Position ±
 PROM Programmable Read Only Memory ±
 PSP Power Steering Pressure ±
 
 
PTOX 
 
Periodic Trap Oxidizer 
 
Diesel Particulate Filter (DPF)
Diesel Particulate Trap (DPT)
RAMRandom Access MemoryRandom Access Memory (RAM) RM Relay Module ± ROM Read Only Memory Read Only Memory (ROM) RPM Engine Speed Engine Speed
 SC Supercharger Supercharger
 SCB Supercharger Bypass ±
 SFI Sequential Multiport Fuel Injection Electronic Fuel Injection (EFI), Sequential Injec-
tion
 SPL Smoke Puff Limiter ± SRI Service Reminder Indicator ± SRT System Readiness Test ±
 ST Scan Tool ±
 TB Throttle Body Throttle Body
 TBI Throttle Body Fuel Injection Single Point Injection
Central Fuel Injection (Ci)
 TC Turbocharger Turbocharger TCC Torque Converter Clutch Torque Converter TCM Transmission Control Module Transmission ECU (Electronic Control Unit)
 TP Throttle Position Throttle Position
 TR Transmission Range ±
IN±40± INTRODUCTIONGLOSSARY OF SAE AND TOYOTA TERMS

 
 
TVV 
 
Thermal Vacuum Valve 
 
Bimetallic Vacuum Switching Valve (BVSV)
Thermostatic Vacuum Switching Valve (TVSV)
 TWC Three±Way Catalytic Converter Three±Way Catalytic (TWC)
CC
RO 
TWC+OC
 
Three±Way + Oxidation Catalytic Converter
 
CCR + CCo 
VA F
 
Volume Air Flow
 
Air Flow Meter 
VR
 
Voltage Regulator
 
Voltage Regulator 
VSS
 
Vehicle Speed Sensor
 
Vehicle Speed Sensor (Read Switch Type) 
WOT
 
Wide Open Throttle
 
Full Throttle 
WU±OC
 
Warm Up Oxidation Catalytic Converter
 
± 
WU±TWC
 
Warm Up Three±Way Catalytic Converter
 
Manifold Converter 
3GR
 
Third Gear
 
± 
4GR
 
Fourth Gear
 
±
± INTRODUCTIONGLOSSARY OF SAE AND TOYOTA TERMSIN±41

OIL PUMP REMOVAL
HINT: When repairing the oil pump, the oil pan and strainer
should be removed and cleaned.
1. REMOVE ENGINE WITH TRANSMISSION
(See components for engine removal and installation)
2. SEPARATE ENGINE AND TRANSMISSION
(See components for engine & transmission separation
and assembly)
3. INSTALL ENGINE TO ENGINE STAND FOR REMOVAL
4. 2JZ±GTE:
REMOVE GENERATOR
5. 2JZ±GTE:
REMOVE CRANKSHAFT POSITION SENSOR
(a) Disconnect the sensor connector from the bracket.
(b) Disconnect the sensor connector from the wiring connector.
(c) Disconnect the wire clamp from the cylinder block.
(d) Remove the bolt and position sensor.
6. REMOVE TIMING BELT
(See steps 4 to 8 in timing belt removal in Engine Me-
chanical)
7. 2JZ±GTE M/T:
REMOVE DRIVE BELT TENSIONER BRACKET
Remove the 2 nuts and tensioner bracket.
8. REMOVE IDLER PULLEY
(See step 15 in timing belt removal in Engine Mechanical)
9. REMOVE CRANKSHAFT TIMING PULLEY
(See step 17 in timing belt removal in Engine Mechanical)
10. REMOVE OIL DIPSTICK AND GUIDE ASSEMBLY
(a) Remove the bolt.
(b) Pull out the dipstick guide together with the dipstick.
(c) Remove the O±ring from the dipstick guide.
11. REMOVE OIL LEVEL SENSOR
(a) Disconnect the level sensor connector.
(b) Remove the 4 bolts and level sensor.
(c) Remove the gasket from the level sensor.
NOTICE: Be careful not to drop the oil level sensor when re-
moving it.
± ENGINELUBRICATION SYSTEMEG±367

6. INSTALL OIL STRAINER
Install a new gasket and the oil strainer with the bolt and 2
nuts.
Torque: 8.8 NVm (90 kgfVcm, 78 in.Vlbf)
7. INSTALL NO.2 OIL PAN
(a) Remove any old packing (FIPG) material and be careful not
to drop any oil on the contact surfaces of the No.1 and No.2
oil pans.
wUsing a razor blade and gasket scraper, remove all the
old packing (FIPG) material from the gasket surfaces
and sealing groove.
wThoroughly clean all components to remove all the
debris.
wUsing a non±residue solvent, clean both sealing
surfaces.
NOTICE: Do not use a solvent which will affect the painted sur-
faces.
(b) Apply seal packing to the No.2 oil pan as shown in the
illustration.
Seal packing:
Part No.08826±00080 or equivalent
wInstall a nozzle that has been cut to a 3±4 mm
(0.12±0.16 in.) opening.
HINT: Avoid applying an excessive amount to the surface.
wParts must be assembled within 5 minutes of
application. Otherwise the material must be removed
and reapplied.
wImmediately remove nozzle from the tube and reinstall
cap.
(c) Install the No.2 oil pan with the 14 bolts and 2 nuts.
Torque: 8.8 NVm (90 kgfVcm, 78 in.Vlbf)
8. INSTALL OIL LEVEL SENSOR
(a) Install a new gasket to the level sensor.
(b) Install the level sensor with the 4 bolts.
Torque: 5.4 NVm (55 kgfVcm, 48 in.Vlbf)
(c) Connect the level sensor connector.
9. INSTALL OIL DIPSTICK GUIDE AND DIPSTICK
(a) Install a new O±ring on the dipstick guide.
(b) Install the guide with the bolt.
10. INSTALL CRANKSHAFT TIMING PULLEY
(See step 1 in timing belt installation in Engine Mechani-
cal)
11. INSTALL IDLER PULLEY
(See step 2 in timing belt installation in Engine Mechani-
cal)
± ENGINELUBRICATION SYSTEMEG±375

12. 2JZ±GTE M/T:
INSTALL DRIVE BELT TENSIONER BRACKET
Torque: 27 NVm (280 kgfVcm, 20 ftVlbf)
13. INSTALL TIMING BELT
(See step 3 in timing belt installation in Engine Mechani-
cal)
14. 2JZ±GTE:
INSTALL CRANKSHAFT POSITION SENSOR
Torque: 8.8 NVm (90 kgfVcm, 78 in.Vlbf)
15. 2JZ±GTE:
INSTALL GENERATOR
16. REMOVE ENGINE STAND FROM ENGINE
17. ASSEMBLY ENGINE AND TRANSMISSION
(See components for engine removal & transmission
separation and assembly)
18. INSTALL ENGINE WITH TRANSMISSION
(See components for engine removal and installation)
OIL COOLER (2JZ±GTE)
COMPONENTS FOR REMOVAL AND
INSTALLATION
EG±376± ENGINELUBRICATION SYSTEM

12. 2JZ±GTE M/T:
INSTALL DRIVE BELT TENSIONER BRACKET
Torque: 27 NVm (280 kgfVcm, 20 ftVlbf)
13. INSTALL TIMING BELT
(See step 3 in timing belt installation in Engine Mechani-
cal)
14. 2JZ±GTE:
INSTALL CRANKSHAFT POSITION SENSOR
Torque: 8.8 NVm (90 kgfVcm, 78 in.Vlbf)
15. 2JZ±GTE:
INSTALL GENERATOR
16. REMOVE ENGINE STAND FROM ENGINE
17. ASSEMBLY ENGINE AND TRANSMISSION
(See components for engine removal & transmission
separation and assembly)
18. INSTALL ENGINE WITH TRANSMISSION
(See components for engine removal and installation)
OIL COOLER (2JZ±GTE)
COMPONENTS FOR REMOVAL AND
INSTALLATION
EG±376± ENGINELUBRICATION SYSTEM