1998 TOYOTA LAND CRUISER injection pump

DI-136
- DIAGNOSTICSENGINE
329 Author
: Date
:
2004 LAND CRUISER (RM1071U)
7 Check whether misfire is occurred or not by monitoring DTC and data list.
NG Perform troubleshooting for misfire
(See page DI-167).
OK
8 Check air induction system (See page SF-1).
CHECK:
Check the air induction system for vacuum leaks.
NG Repair or replace air induction system.
OK
9 Check fuel pressure (See page SF-7).
CHECK:
Check the fuel pressure (high or low pressure).
NG Check and repair fuel pump, pressure regulator,
fuel pipe line and filter (See page SF-1).
OK
10 Check injector injection (See page SF-24)
NG Replace injector.
OK

- DIAGNOSTICSENGINE
DI-17
210 Author
: Date
:
8. ACTIVE TEST
HINT:
Performing the ACTIVE TEST using the hand-held tester or the OBD II scan tool allows the relay, VSV, ac-
tuator and so on to operate without parts removal. Performing the ACTIVE TEST as a first step of trouble-
shooting is one method to shorten diagnostic time.
It is possible to display the DATA LIST during the ACTIVE TEST.
(a) Warm up the engine.
(b) Turn the ignition switch OFF.
(c) Connect the hand-held tester or the OBD II scan tool to the DLC3.
(d) Turn the ignition switch ON.
(e) Push the ºONº button of the hand-held tester or the OBD II scan tool.
(f) Enter the following menus: DIAGNOSIS / ENHANCED OBD II / ACTIVE TEST.
(g) According to the display on tester, perform the ºACTIVE TESTº.
ItemTest DetailsDiagnostic Note
INJ VOL
[Test Details]
Control the injection volume.
Min.: -12.5%, Max.: 24.8%
[Vehicle Condition]
Engine speed: 3,000 rpm or less.
All injectors are tested at
once.

Injection volume is gradual-
ly changed between -12.5
and 25%
A/F CONTROL
[Test Details]
Control injection volume
-12.5 or 25 % (change injection volume -12.5 % or 25 %)
[Vehicle Condition]
Engine speed: 3,000 rpm or less
Following A/F CONTROL
procedure enables techni-
cian to check and graph volt-
age outputs of both the A/F
sensor and heated oxygen
sensor
For displaying graph, enter
ºACTIVE TEST / A/F CON-
TROL / USER DATAº, select
ºAFS B1S1 and O2S B1S2º
by pressing ºYESº and push
ºENTERº. Then press ºF4º
FUEL PUMP / SPD
[Test Details]
Control the fuel pump speed.
ON or OFF
-
VVT CTRL B1
[Test Details]
Active VVT system (Bank 1)
ON or OFF
ON: Rough idle or engine
stall

OFF: Normal engine speed
VVT CTRL B2
[Test Details]
Active VVT system (Bank 2)
ON or OFF
ON: Rough idle or engine
stall

OFF: Normal engine speed
CAN CTRL VSV
[Test Details]
Activate the VSV for canister control.
ON or OFF
-
TANK BYPASS VSV
[Test Details]
Activate the VSV for tank bypass.
ON or OFF
-
A/C MAG CLUTCH
[Test Details]
Control the A/C magnet clutch.
ON or OFF
-
EVAP VSV (ALONE)
[Test Details]
Activate the VSV for EVAP control.
ON or OFF
-

2004 LAND CRUISER (EWD548U)
11 9
2. Control System
*SFI system
The SFI system monitors the engine condition through the signals input from each sensors to the engine control module.
The control signal is sent to the engine control module TERMINALS #1, #2, #3, #4, #5, #6, #7, #8 to operate the injector
(Fuel injection). The SFI system controls the fuel injection by the engine control module in response to the driving
conditions.
*ESA system
The ESA system monitors the engine condition through the signals input from each sensors to the engine control module.
The best ignition timing is decided according to this data and the data memorized in the engine control module. The
control signal is output to TERMINALS IGT1, IGT2, IGT3, IGT4, IGT5, IGT6, IGT7, IGT8, and these signals control the
igniter to provide the best ignition timing.
*Heated oxygen sensor heater control system
The heated oxygen sensor heater control system turns the heater on when the intake air volume is low (Temp. of exhaust
emission is low), and warms up the heated oxygen sensors to improve their detection performance. The engine control
module evaluates the signals from each sensors, and outputs current to TERMINALS HT1A, HT1B, HT2A, HT2B to
control the heater.
*Fuel pump control system
The engine control module supplies current to TERMINAL FPR, and controls the operation speed of the fuel pump by the
F/PUMP relay.
*ACIS
The ACIS includes a valve in the bulkhead separating the surge tank into two parts. This valve is opened and closed in
accordance with the driving conditions to control the intake manifold length in two stages, for increased engine output in all
ranges from low to high speeds.
*ETCS-i
The ETCS-i controls the engine output at its optimal level in accordance with the opening of the accelerator pedal, under
all driving conditions.
3. Diagnosis System
When there is a malfunction in the engine control module signal system, the malfunctioning system is recorded in the
memory. The malfunctioning system can be found by reading the code displayed on the malfunction indicator lamp.
4. Fail-Safe System
When a malfunction has occurred in any system, there is a possibility of causing engine trouble due to continued control
based on that system. In that case, the fail-safe system either controls the system using the data (Standard values)
recorded in the engine control module memory, or else stops the engine.
E2 Engine Coolant Temp. Sensor
1-2 : Approx. 15.0 kW (-20°C, -4°F)
: Approx. 2.45 kW (20°C, 68°F)
: Approx. 0.32 kW (80°C, 176°F)
E5 (A), E7 (C), E8 (D), E9 (E) Engine Control Module
BATT-E1 : Always 9.0-14.0 volts
+BM-E1 : Always 9.0-14.0 volts
IGSW-E1 : 9.0-14.0 volts with ignition SW at ON or ST position
+B, +B2-E1 : 9.0-14.0 volts with ignition SW at ON or ST position
VC-E2 : 4.5-5.5 volts with ignition SW on
VTA2-E2 : 2.0-2.9 volts with ignition SW on and accelerator pedal released
: 4.6-5.1 volts with ignition SW on and accelerator pedal depressed
VTA1-E2 : 0.4-1.0 volts with ignition SW on and accelerator pedal released
: 3.2-4.8 volts with ignition SW on and accelerator pedal depressed
THA-E2 : 0.5-3.4 volts with idling, intake air temp. 20°C (68°F)
THW-E2 : 0.2-1.0 volts with idling, engine coolant temp. 80°C (176°F)
W-E1 : 9.0-14.0 volts with idling
: Below 3.0 volts with ignition SW on
Service Hints

PP3Y4-01
- PREPARATIONCHARGING
PP-25
84 Author
: Date
:
2004 LAND CRUISER (RM1071U)
CHARGING
SST (Special Service Tools)
09285-76010Injection Pump Camshaft Bearing
Cone Replacer
09820-00021Alternator Rear Bearing Puller
09820-00031Alternator Rear Bearing Replacer
09820-6301 1Alternator Pulley Set Nut
Wrench Set
09950-4001 1Puller B Set
(09951-04020)Hanger 200
(09952-04010)Slide Arm
(09953-04020)Center Bolt 150
(09954-04010)Arm 25
(09955-04071)Claw No.7
(09958-0401 1)Holder
09950-60010Replacer Set

PP1AZ-06
PP-22
- PREPARATIONSTARTING
81 Author
: Date
:
2004 LAND CRUISER (RM1071U)
STARTING
SST (Special Service Tools)
09286-4601 1Injection Pump Spline Shaft
PullerArmature front bearing
09810-38140Starter Magnet Switch Nut Wrench
14
09820-00031Alternator Rear Bearing ReplacerArmature bearing

SS0CB-20
- SERVICE SPECIFICATIONSSFI
SS-1 1
151 Author
: Date
:
2004 LAND CRUISER (RM1071U)
SFI
SERVICE DATA
Fuel pressure
regulatorFuel pressure at no vacuum265 - 304 kPa
(2.7 - 3.1 kgf/cm2, 38 - 44 psi)
Fuel pumpResistance at 20°C (68°F)0.2 - 3.0 W
InjectorResistance at 20°C (68°F)
Injection volume
Difference between each cylinder
Fuel leakage13.4 - 14.2 W
56 - 69 cm3 (3.4 - 4.2 cu in.) per 15 seconds
13 cm3 (0.8 cu in.) or less
1 drop or less per 12 minutes
MAF meterResistance (THA - E2) at -20°C (-4°F)
at 20°C (68°F)
at 60°C (140°F)12.5 - 16.9 kW
2.19 - 2.67 kW
0.50 - 0.68 kW
Throttle bodyThrottle body fully closed angle5.5°
Accelerator pedal
position sensorStandard throttle valve opening percentage
Sensor lever full-open position60 % or more
Throttle control
motorMotor resistance at 20°C (68°F)0.3 - 100 W
VSV for EVAPResistance at 20°C (68°F)30 - 34 W
VSV for vapor
pressure sensorResistance at 20°C (68°F)30 - 36 W
ECT sensorResistance at -20°C (-4°F)
0°C (32°F)
20°C (68°F)
40°C (104°F)
60°C (140°F)
80°C (176°F)10 - 20 kW
4 - 7 kW
2 - 3 kW
0.9 - 1.3 kW
0.4 - 0.7 kW
0.2 - 0.4 kW
Vapor pressure
sensorPower source voltage4.5 - 5.5 V
Heated oxygen
sensorHeater coil resistance at 20°C (68°F)11 - 16 W
Fuel cut rpmFuel return rpm1,000 rpm
Fuel pump resistarResistance at 20°C (68°F)0.70 - 0.76 W
VSV for CCVResistance at 20°C (68°F)24 - 30 W

B00884
SST
(Adaptor)
SST
(Hose)
SST
(Clamp)
Vinyl
HoseO-Ring
A07061
TOYOTA
Hand-Held
Tester
DLC3
B00883
ConnectSST
(Wire)
A01293
- SFIINJECTOR
SF-25
1724 Author
: Date
:
2004 LAND CRUISER (RM1071U)
(h) Install the O-ring to the injector.
(i) Connect SST (adaptor and hose) to the injector, and hold
the injector and union with SST (clamp).
SST 09268-41047 (09268-41110, 09268-41300)
(j) Put the injector into the graduated cylinder.
CAUTION:
Install a suitable vinyl hose onto the injector to prevent
gasoline from splashing out.
(k) Connect the TOYOTA hand-held tester or OBD II scan
tool to the DLC3.
(l) Connect the battery negative (-) cable to the battery.
(m) Turn the ignition switch ON, and press the TOYOTA
hand-held tester or OBD II scan tool main switch ON.
NOTICE:
Do not start the engine.
(n) Select ACTIVE TEST mode on the TOYOTA hand-held
tester or OBD II scan tool.
(o) Please refer to the TOYOTA hand-held tester or OBD II
scan tool operator's manual for further details.
(p) If you have no TOYOTA hand-held tester or OBD II scan
tool, connect the positive (+) and negative (-) leads from
the battery to the fuel pump connector
(See page SF-7).
(q) Connect SST (wire) to the injector and the battery for 15
seconds, and measure the injection volume with a gra-
duated cylinder. Test each injector 2 or 3 times.
SST 09842-30070
Volume: 56 - 69 cm
3 (3.4 - 4.2 cu in.) per 15 seconds
Difference between each injector:
13 cm
3 (0.8 cu in.) or less
If the injection volume is not as specified, replace the injector.
2. INSPECT LEAKAGE
(a) In the condition above, disconnect the tester probes of
SST (wire) from the battery and check the fuel leakage
from the injector.
SST 09842-30070
Fuel drop: 1 drop or less per 12 minutes