TOYOTA SUPRA 1995 Service Repair Manual

IGNITION COIL
COMPONENTS FOR REMOVAL AND
INSTALLATION
IGNITION COILS REMOVAL
Installation is in the reverse order of removal.
1. REMOVE NO.3 TIMING BELT COVER
(a) Remove the oil filler cap.
(b) Using a 5 mm hexagon wrench, remove the 10 bolts, belt
cover and gasket.
2. REMOVE PCV HOSES
Remove the 2 PCV hoses.
3. DISCONNECT IGNITION COIL CONNECTORS
(a) Disconnect the engine wire from the 6 clamps on the ignition
coils.
(b) Disconnect the 6 ignition coil connectors. IG±26
± IGNITION SYSTEM2JZ±GTE

4. REMOVE BRACKET IGNITION COILS ASSEMBLIES
Remove the 2 bolts and 2 ignition coils assembly.
Torque:
Bracket to cylinder head cover
8.8 NVm (90 kgfVcm, 78 in.Vlbf)
5. REMOVE IGNITION COILS FROM BRACKET
(a) Remove the rubber boot from the ignition coil.
(b) Remove the 2 screws and ignition coil.
± IGNITION SYSTEM(2JZ±GTE)IG±27

CAMSHAFT POSITION SENSOR
COMPONENTS FOR REMOVAL AND
INSTALLATION
CAMSHAFT POSITION SENSOR
REMOVAL
Installation is in the reverse order of removal.
1. DISCONNECT IAC VALVE CONNECTOR
2. DISCONNECT AIR HOSE FROM IAC VALVE
3. REMOVE ENGINE HANGER
Remove the 2 bolts, ground strap and engine hanger.
Torque: 39 NVm (400 kgfVcm, 29 ftVlbf)
4. DISCONNECT CAMSHAFT POSITION SENSOR
CONNECTORS
5. REMOVE CAMSHAFT POSITION SENSORS
Remove the 4 bolts, 2 camshaft position sensors and 2 gas-
kets.
Torque: 6.4 NVm (65 kgfVcm, 56 in.Vlbf)
IG±28± IGNITION SYSTEM2JZ±GTE

CRANKSHAFT POSITION SENSOR
COMPONENTS FOR REMOVAL AND
INSTALLATION
± IGNITION SYSTEM2JZ±GTEIG±29

CRANKSHAFT POSITION SENSOR
REMOVAL
Installation is in the reverse order of removal.
1. REMOVE GENERATOR
(See generator removal in Charging System)
2. DISCONNECT CRANKSHAFT POSITION SENSOR
CONNECTOR
(a) Disconnect the sensor connector from the bracket.
(b) Disconnect the sensor connector from the wiring connector.
3. REMOVE CRANKSHAFT POSITION SENSOR
(a) Disconnect the wire clamp from the cylinder block.
(b) Remove the bolt and crankshaft position sensor.
Torque: 8.8 NVm (90 kgfVcm, 78 in.Vlbf)
IG±30± IGNITION SYSTEM(2JZ±GTE)

SERVICE SPECIFICATIONS
SERVICE DATA
 Firing order ± 1 ± 5 ± 3 ± 6 ± 2 ± 4 
 
 
 
Spark plug 
 
 
 
Recommended spark plug ND
NGK
Correct electrode gap for new plug
Maximum electrode gap for used plug 
 
 
 
PK20R11
BKR6EP11
1.1 mm (0.043 in.)
1.3 mm (0.051 in.)
 
 
Ignition coil 
 
Primary coil resistance at cold
at hot 
 
0.54±0.84

0.68±0.98

 
 
 
 
Camshaft
position
sensor 
 
 
 
Resistance at cold

at hot 
 
 
 
835±1,400
for NIPPONDENSO
985±1,600
for AISAN
1,060±1,645
for NIPPONDENSO
1,265±1,890
for AISAN
 
 
 
 
Crankshaft
position
sensor 
 
 
 
Resistance at cold
at hot 
 
 
 
835±1,400
for NIPPONDENSO
985±1,600
for AISAN
1,060±1,645
for NIPPONDENSO
1,265±1,890
for AISAN
TORQUE SPECIFICATIONS
 Part tightened NVm kgfVcm ftVlbf Ignition coil bracket x Cylinder head 8.8 90 78 in.Vlbf 
 Ignition coil x Ignition coil bracket 
 2.5 
 35 
 3.4 in.Vlbf
 Camshaft position sensor x Cylinder head 8.8 90 78 in.Vlbf
 Engine hanger x Cylinder head 39 400 29
 Crankshaft position sensor x Oil pump 8.8 90 78 in.Vlbf
± IGNITION SYSTEM2JZ±GTEIG±31

INTRODUCTION
IN±1

HOW TO USE THIS MANUAL
INDEX
An INDEX is provided on the first page of each section to guide you to the item to be repaired. To assist
you in finding your way through the manual, the Section Title and major heading are given at the top of every
page.
GENERAL DESCRIPTION
At the beginning of each section, a general Description is given that pertains to all repair operations con-
tained in that section.
Read these precautions before starting any repair task.
TROUBLESHOOTING
TROUBLESHOOTING tables are included for each system to help you diagnose the problem and find the
cause. The fundamentals of how to proceed with troubleshooting are described on page IN±19. Be sure
to read this before performing troubleshooting.
PREPARATION
Preparation lists the SST (Special Service Tools), recommended tools, equipment, lubricant and SSM
(Special Service Materials) which should be prepared before beginning the operation and explains the pur-
pose of each one.
REPAIR PROCEDURES
Most repair operations begin with an overview illustration. It identifies the components and shows how the
parts fit together.
Example:
IN±2± INTRODUCTIONHOW TO USE THIS MANUAL

The procedures are presented in a step±by±step format:
wThe illustration shows what to do and where to do it.
wThe task heading tells what to do.
wThe detailed text tells how to perform the task and gives other information such as specifications and
warnings.
Example:
This format provides the experienced technician with a FAST TRACK to the information needed. The upper
case task heading can be read at a glance when necessary, and the text below it provides detailed informa-
tion. Important specifications and warnings always stand out in bold type.
REFERENCES
References have been kept to a minimum. However, when they are required you are given the page to refer
to.
SPECIFICATIONS
Specifications are presented in bold type throughout the text where needed. You never have to leave the
procedure to look up your specifications. They are also found at the end of each section, for quick refer-
ence.
± INTRODUCTIONHOW TO USE THIS MANUALIN±3

CAUTIONS, NOTICES, HINTS:
wCAUTIONS are presented in bold type, and indicate there is a possibility of injury to you or other
people.
wNOTICES are also presented in bold type, and indicate the possibility of damage to the components
being repaired.
wHINTS are separated from the text but do not appear in bold. They provide additional information to
help you perform the repair efficiently.
SI UNIT
The UNITS given in this manual are primarily expressed according to the SI UNIT (International System
of Unit), and alternately expressed in the metric system and in the English System.
Example:
Torque: 30 NVm (310 kgfVcm, 22 ftVlbf)
IDENTIFICATION INFORMATION
VEHICLE IDENTIFICATION NUMBER
The vehicle identification number is stamped on the vehicle
identification number plate and certification label.
A. Vehicle Identification Number Plate
B. Certification Label
ENGINE SERIAL NUMBER
The engine serial number is stamped on the engine block as
shown. IN±4
± INTRODUCTIONHOW TO USE THIS MANUAL