Page 1131 of 2543
4. INSPECT EGR VALVE
Check for sticking and heavy carbon deposits.
If a problem is found, replace the EGR valve.
5. REINSTALL EGR VALVE
(a) Place a new gasket on the air intake chamber.
(b) Install the EGR valve with the 2 nuts.
Torque: 21 NVm (210 kgfVcm, 15 ftVlbf)
(c) Reconnect the following hoses to the EGR valve:
wVacuum hose
wPressure hose
6. REINSTALL EGR GAS TEMPERATURE SENSOR
Torque: 20 NVm (200 kgfVcm, 14 ftVlbf)
7. REINSTALL EGR PIPE
(a) Temporarily install the union nut of the EGR pipe.
(b) Install a new gasket and the EGR pipe with the 2 bolts.
Torque: 27 NVm (280 kgfVcm, 20 ftVlbf)
(c) Tighten the union nut of the EGR pipe.
Torque: 64 NVm (650 kgfVcm, 47 ftVlbf)
EG±182± ENGINEEMISSION CONTROL SYSTEMS (2JZ±GTE)
Page 1132 of 2543
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 DENTS OR DAMAGE
If any part of the protector is damaged or dented to the extent
that it contacts the TWC, repair or replace it.
HEAT INSULATOR INSPECTION
1. CHECK HEAT INSULATOR FOR DAMAGE
2. CHECK FOR ADEQUATE CLEARANCE BETWEEN
CATALYTIC CONVERTER AND HEAT INSULATOR
± ENGINEEMISSION CONTROL SYSTEMS (2JZ±GTE)EG±183
Page 1133 of 2543
COMPONENTS FOR FRONT TWC
REPLACEMENT
EG±184± ENGINEEMISSION CONTROL SYSTEMS (2JZ±GTE)
Page 1134 of 2543
COMPONENTS FOR REAR TWC
REPLACEMENT
± ENGINEEMISSION CONTROL SYSTEMS (2JZ±GTE)EG±185
Page 1135 of 2543
SERVICE SPECIFICATIONS
TORQUE SPECIFICATIONS
Part tightened NVm kgfVcm ftVlbf
EGR valve x Air Intake chamber 21 210 15
EGR gas temperature sensor x EGR valve 20 200 14
EGR pipe x Cylinder head
27
280
20
EGR valve x EGR pipe 64 650 47
No.2 front exhaust pipe (Front TWC) x Exhaust manifold 62 630 46
Pipe support bracket x Transmission 43 440 32
No.2 front exhaust pipe (Front TWC) x Front exhaust pipe (Rear TWC)
43
440
32
Front exhaust pipe (Rear TWC) x Center exhaust pipe 43 440 32
Sub heated oxygen sensor x Front exhaust pipe 20 200 14
EG±186± ENGINEEMISSION CONTROL SYSTEMS (2JZ±GTE)
Page 1137 of 2543
(2JZ±GE)
PRECAUTION
1. With a tachometer connected to the system, connect the
tester probe of the tachometer to terminal IG of the
DLC1.
2. As some tachometers are not compatible with this
ignition system, we recommend that you confirm the
compatibility of your unit before use.
3. Never allow the tachometer terminals to touch ground as
it could result in damage to the igniter and/or ignition
coil.
4. Do not disconnect the battery while the engine is
running.
5. Check that the igniter is properly grounded to the body. IG±2
± IGNITION SYSTEM2JZ±GE
Page 1138 of 2543
PREPARATION
SST (SPECIAL SERVICE TOOLS)
09240±00020Wire Gauge SetDistributor
RECOMMENDED TOOLS
09082±00050TOYOTA Electrical Tester Set
09200±00010Engine Adjust Kit
EQUIPMENT
Megger insulation resistance meter Spark plug
Spark plug cleaner
Thermometer
COOLANT
Item Capacity Classification
Engine coolant (W/Heater) M/T
A/T
7.3 liters (7.7 US qts, 6.4 lmp. qts)
8.3 liters (8.8 US qts, 7.3 lmp. qts)
Ethylene±glycol base
± IGNITION SYSTEM2JZ±GEIG±3
Page 1139 of 2543
ON±VEHICLE INSPECTION
SPARK TEST
CHECK THAT SPARK OCCURS
(a) Disconnect the high±tension cord (from the ignition coil) from
the distributor cap.
(b) Hold the end approx. 12.5 mm (0.50 in.) from the body
ground.
(c) See if spark occurs while engine is being cranked.
HINT: To prevent gasoline from being injected from injectors
during this test, crank the engine for no more than 1±2 se-
conds at time.
If the spark does not occur, do the test as follows:
SPARK TEST
Connect securely.CHECK CONNECTION OF IGNITION COIL,
IGNITER AND DISTRIBUTOR CONNECTOR
CHECK RESISTANCE OF HIGH±TENSION CORD(See page IG±5)
Maximum resistance: 25 k per cord
CHECK POWER SUPPLY TO IGNITION COIL AND
IGNITER
1. Turn ignition switch to ON.
2. Check that there is battery voltage at
ignition coil positive (+) terminal.
CHECK RESISTANCE OF IGNITION COIL(See page IG±7)Resistance: Cold Hot
Primary 0.21 ± 0.33 0.27 ± 0.39
Secondary 6.4 ± 11.1 k8.2 ± 13.0 k
CHECK RESISTANCE OF SIGNAL GENERATOR
(PICKUP COIL)(See page IG±8)Resistance: Cold Hot
G1 and G 125 ± 200 160 ± 235
G2 and G 125 ± 200 160 ± 235
NE and G 155 ± 250 190 ± 290
CHECK AIR GAP OF DISTRIBUTOR(See page IG±8)Air gap: 0.2 ± 0.5 mm (0.008 ± 0.020 in.)
(See page EG±413)
CHECK IGT SIGNAL FROM ECM
TRY ANOTHER IGNITER
Replace the cord(s).
Check wiring between ignition switch to ignition
coil and igniter.
Replace the ignition coil.
Replace the distributor housing assembly.
Replace the distributor housing assembly.
Check wiring between ECM, distributor and
igniter, and then try another ECM.
IG±4± IGNITION SYSTEM2JZ±GE
