fuel injector TOYOTA CAMRY 2000 Service Owner's Manual

(l) Connect SST (wire) to the injector and battery for 15
seconds, and measure the injection volume with a
graduated cylinder. Test each injector 2 or 3 times.
SST 09842±30070
Volume:
49 ± 59 cm
(3.0±3.6 cu in.) per 15 sec.
Difference between each Injector:
5 cm
(0.3 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 test probes of
SST (wire) from the battery and check the fuel leakage
from the injector.
SST 09842±30070
Fuel drop:
One drop or less per minute
(b) Disconnect the negative (±) terminal cable from the
battery. SST 09268±41045 (09268±41080)
Torque: 18 N±m (180 kgf±cm, 13 ft±lbf)
(f) Install the grommet and a new O±ring to the injector.
(g) Connect SST (union and hose) to the injector, and hold
the injector and union with SST (clamp).
SST 09268±41045
(h) Put the injector into a graduated cylinder.
HINT: Install a suitable vinyl hose onto the injector to
prevent gasoline from splashing out.
(i) Using SST, connect terminals +B and FP of the data
link connector 1.
SST 09843±18020
(j) Reconnect the negative (±) terminal cable to the
battery.
(k) Turn the ignition switch ON.
NOTICE: Do not start the engine.
(c) Remove the SST.
SST 09268±41045 and 09843±18020
± 5S±FE ENGINEMFI/SFI SYSTEMEG1±196

(i) Check that the injectors rotate smoothly.
HINT: If injectors do not rotate smoothly, the probable
cause is incorrect installation of O ± rings. Replace the
O±rings.
(j) Position the injector connector upward.
(l) Connect the fuel return hose.
(m) Connect the fuel inlet pipe to the delivery pipe with 2
new gaskets and the pulsation damper.
Torque: 34 N±m (350 kgf±cm, 25 ft±lbf)
(k) Tighten the 2 bolts holding the delivery pipe to the
cylinder head.
Torque: 13 N±m (130 kgf±cm, 9 ft±lbf)
3. INSTALL INTAKE MANIFOLD
(a) Connect the 2 wire clamps to the wire brackets
on the intake manifold. 2. CONNECT INJECTOR CONNECTORS
± 5S±FE ENGINEMFI/SFI SYSTEMEG1±198

2. CONNECT TACHOMETER TO ENGINE
Connect the test probe of a tachometer to terminal IG
(±) of the data link connector 1.
NOTICE:
wNEVER allow the tachometer terminal to touch
ground as it could result in damage to the igniter
and/or ignition coil.
wAs some tachometers are not compatible with this
ignition system, we recommend that you confirm
the compatibility of yours before use.
3. INSPECT FUEL CUT RPM
(a) Increase the engine speed to at least 2,500 rpm.
(b) Use a sound scope to check for injector operating
noise.
(c) Check that when the throttle lever is released, injector
operation noise stops momentarily and then resumes.
HINT: Measure with the A/C OFF.
Fuel return speed:
1,500 rpm
4. DISCONNECT TACHOMETER
FUEL CUT RPM
FUEL CUT RPM INSPECTION
1. WARM UP ENGINE
Allow the engine to warm up to normal operating
temperature.
± 5S±FE ENGINEMFI/SFI SYSTEMEG1±235

Clearance between stop screw and lever
0 mm (0 in.)
0.50 mm (0.020 in.)
0.70 mm (0.028 in.)
Throttle valve fully open
SERVICE SPECIFICATIONS
SERVICE DATA
Resistance
Injection volume
Difference between each cylinder
Fuel leakage
Throttle body fully closed angle
Throttle opener setting speed
VSV for Fuel
pressure
(California
only)
EG R gas
temperature
sensorResistance (+B ± ISCC or ISCO) Throttle
position
sensor Fuel pressure
regulator
A/C idle ±up
valvePower source voltage
Fuel return rpm Fuel pressure
Throttle body
Fuel cut rpm VSV for EG Rat no vacuum
MAP sensor Fuel pump
IAT sensorECT sensor
Resistance Resistance
Resistance
Resistance Resistance
Resistance Resistance IAC valve Injector
± 5S±FE ENGINEMFI/SFI SYSTEMEG1±236

wOpen or short in injector circuit
wFuel line pressure (injector leak, blockage)
wMechanical system malfunction (skipping teeth of timing
belt)
wIgnition system
w Compression pressure (foreign object caught in valve)
wAir leakage
wECM wOpen or short in main oxygen sensor circuit
wMain oxygen sensor
wignition system
wECM wOpen or short in engine coolant temp. sensor circuit
wEngine coolant temp. sensor
wECM
wOpen or short in intake air temp. sensor circuit
wIntake air temp. sensor
wECM wMain oxygen sensor circuit
w Main oxygen sensorMalfunction
Indicator
Lamp*

*
,*: See page EG1±306Normal
Mode Trouble AreaMemory`
Test
ModeSee page
EG1±360
EG1±363EG1±352
EG1±356
± 5S±FE ENGINEDIAGNOSTIC TROUBLE CODE CHARTEG1±303

wOpen or short in injector circuit
wFuel line pressure (injector leak, blockage)
wMechanical system malfunction (skipping teeth of timing
belt)
wIgnition system
wCompression pressure (foreign object caught in valve)
wAir leakage
w ECM
wOpen or short in No.1 vehicle speed sensor circuit
wNo.1 vehicle speed sensor
wCombination meter
wECM wOpen or short in manifold absolute pressure sensor circuit.
wManifold absolute pressure sensor
wECM
wOpen or short in throttle position sensor circuit
wThrottle position sensor
wECM wOpen or short in sub oxygen sensor circuit
wSub oxygen sensor
wECMMalfunction
Indicator
Lamp*

*
,*: See page EG1±306Normal
Mode Trouble Area
Memory*
Test
ModeSee page
EG1±380EG1±369
EG1±376EG1±372EG1±363
OFF OFF
± 5S±FE ENGINEDIAGNOSTIC TROUBLE CODE CHARTEG1±305

(1) Be sure that fuel is enough in tank.
(2) Turn ignition switch on.
(3) Using SST, connect terminals FP and + B of
data link connector 1.
SST 09843±18020
Check for fuel pressure in the return hose when it
is pinched off.
Disconnect the high±tension cord from the distributor and, hold the end about 12.5 mm (1/2º)
from the ground, see if spark occurs while the engine is being cranked.
To prevent excessive fuel injected from the injectors during this test, don't crank the engine for
more than 1±2 seconds at a time.Never make a mistake with the terminal con±
nection position as this will cause a malfunc±
tion.
Proceed to matrix chart of problem symptoms
on page EG1±327.
Proceed to page EG1±178 and continue
to troubleshoot.
Proceed to page IG±6, 26* and continue
to troubleshoot.
* : Except California specification vehicles.
Check fuel pressure.
Check for spark.
At this time, you will hear fuel return noise.
± 5S±FE ENGINEBASIC INSPECTIONEG1±312

ECM (California specification vehicles and except California specification vehicles with A/T)
*
: Only for California specification vehicles.
*: Except California specification vehicles with A/T.wManifold absolute pressure sensor
wThrottle position sensor
TERMINAL OF ECM (Cont'd)
Manifold absolute pressure sensor VSV for fuel pressure control
Engine coolant temp. sensor No.2 and No.4 injectors
No.1 and No.3 injectors
Intake air temp. sensor VSV for A/C Idle up
Main oxygen sensor Sub oxygen sensor A/T No.1 solenoid
A/T No,2 solenoid Terminal
No.*
A/T SL solenoid
Power ground
Power ground No.2 injector
No.1 injectorNo.4 injector
No.3 injector
ECM groundVSV for EG RConnection Connection
DistributorDistributor
Distributor Distributor
IAC valve IAC valveSymbol Symbol
Igniter IgniterTerminal
No.*
± 5S±FE ENGINETERMINALS OF ECMEG1±320

MATRIX CHART OF PROBLEM SYMPTOMS
When the malfunction code is not confirmed in the diagnostic trouble code check and the problem still can
not be confirmed in the basic inspection, then proceed to this step and perform troubleshooting according
to the numbered order given in the table below.
*: Except California specification vehicles.
Park/Neutral position switch circuitManifold absolute pressure sensor circuit
VSV circuit for fuel pressure control
Ignition signal circuit (Spark test)
After acceleration pedal depressed
After acceleration pedal released
Switch condition signal circuit
Muffler explosion (after fire)No initial combustion
Back up power source circuit
Hesitation/Poor accelerationNo complete combustion
ECM power source circuit
Starter and Starter relay
Engine control module
High engine idle speed
Low engine idle speedUnder normal condition
During A/C operationEngine does not crank
A/C cut control circuit Starter signal circuit
Soon after starting
Fuel system circuit
When N to D shiftIncorrect first idle
Poor
Driveability
IAC valve circuit Difficult to
start
Injector circuit
Rough idling
Does not
start
Compression
Suspect area
Cold engine
Ignition coil Engine Stall
EG R system
Hot engine
Poor Idling
Spark plug
A/T faultylG±10,30*
IG±11,30 Distributor
Symptom
ST±19,21
See page
IG±8,28* IG±6,26*
Hunting
Surging
EG1±400
EG1±410 EG1±390
EG1±403
EG1±408
EG1±415
EG1±419EG1±383EG1±372
EG1±428EG1±396
EG1 ±424
AX1±68 EG1±23
IN±36
± 5S±FE ENGINEMATRIX CHART OF PROBLEM SYMPTOMSEG1±327

Disconnect the high±tension cord from the distributor, hold its end about 12.5 mm (11 /2º)
from the ground, see if spark occurs while the engine is being cranked.
Spark should be generated.
To prevent excessive fuel injected from the injectors during this check, don't crank the
engine for more than 1 ± 2 seconds at a time.
(1) Disconnect igniter connector.
(2) Remove glove compartment.
(See page EG1±234).
(3) Turn ignition switch on.
Measure voltage between terminal IGF of engine
control module connector and body ground.
Voltage: 4.5 ~ 5.5 V
Check for open and short in harness and connector in IGF signal
circuit between engine control module and igniter (See page IN±31).
Disconnect igniter connector and check voltage between terminal
IGF of engine control module connector and body ground.
Check and replace engine control module.Repair or replace harness or connector.
INSPECTION PROCEDURE
Check for spark.
Replace igniter.
Go to step
± 5S±FE ENGINECIRCUIT INSPECTIONEG1±346