1999 TOYOTA CAMRY fuel pressure

SS10A±01
SS±22
± SERVICE SPECIFICATIONSSFI (1MZ±FE)
185 Author: Date:
TORQUE SPECIFICATION
Part tightenedN´mkgf´cmft´lbf
Fuel line (Union bolt type)2930021
Fuel line (Flare nut type) using SST2828521
Fuel pump assembly x Fuel tank44035 in.´lbf
Fuel filter x Fuel pump bracket22017 in.´lbf
Fuel pressure regulator x Fuel pump bracket22017 in.´lbf
Delivery pipe x Intake manifold101007
No.1 fuel pipe x Intake manifold19.520014
Fuel tank band x Body3940029
Throttle body x Air intake chamber19.520014
Intake air control valve x Air intake chamber14.514510
ECT sensor x Water outlet2020014
Knock sensor x Cylinder block3940029
A/F sensor x Exhaust manifold4445032
Heated oxygen sensor (Bank 1, 2 sensor 1) x Exhaust manifold4445032
Heated oxygen sensor (Bank 1 sensor 2) x Exhaust pipe4445032

SS0AG±04
± SERVICE SPECIFICATIONSSFI
SS±5
63 Author: Date:
SFI
SERVICE DATA
Fuel pressureFuel pressure
between fuel tank and pressure regulatorat 20°C (68°F)
between pressure regulator and injector
24,800 kPa (250 kgf/cm2, 3,600 psi)
834 ± 932 kPa (8.5 ± 9.5 kgf/cm2, 121 ± 135 psi)
InjectorResistance at 20°C (68°F)2.65 ± 3.0 W
Fuel shutoff valve
for delivery pipeResistance at 20°C (68°F)1.8 ± 2.2 W
Fuel shutoff valve
for fuel pressure
regulatorResistance at 20°C (68°F)1.4 ± 1.8 W
Fuel shutoff valve
for fuel tankResistance at 20°C (68°F)Approx 19 W
Fuel temperature
sensor for
delivery pipeResistance at ±20°C (±4°F)
at 20°C (68°F)
at 80°C (176°F)13.9 ± 16.3 kW
2.32 ± 2.59 kW
0.31 ± 0.326 kW
Fuel temperature
sensor for
fuel tankResistance at ±30°C (±22°F)
at 25°C (77°F)
at 40°C (104°F)
at 100°C (212°F)80 ± 100 kW
4.80 ± 5.20 kW
2.51 ± 2.81 kW
0.30 ± 0.37 kW
Fuel pressure
sensor for
delivery pipePower source voltage at 20°C (68°F)
Power output voltage at 20°C (68°F)4.5 ± 5.5 V
3.1 ± 3.6 V
Fuel pressure
sensor for
fuel pipePower source voltage at 20°C (68°F)
Power output voltage at 20°C (68°F)
Needle position of fuel level gauge at 4/4
at 3/4
at 2/4
at 1/44.5 ± 5.5 V
Approx. 2.8 V
Approx. 2.4 V
Approx. 1.8 V
Approx. 1.3 V
Fuel cut rpmFuel return rpm A/C OFF1,400 rpm

SS0AH±04
SS±6
± SERVICE SPECIFICATIONSSFI
TORQUE SPECIFICATION
Part tightenedN´mkgf´cmft´lbf
Fuel line for union for fuel inlet coupler
for others42
28428
28631
21
Fuel filter x Drain plug10.811 08
Fuel filter x Fuel filter bracket21.521916
Fuel filter x Union3131623
Oil separator x Fuel pressure regulator24.525018
Fuel pressure regulator x Bracket2020015
Fuel pressure regulator bracket x Body for 10 mm head bolt
for 12 mm head bolt9.9
19.6100
20088 in.´lbf
14
Fuel relief pipe x Fuel pressure regulator4242831
Delivery pipe x cylinder head1313010
Fuel tank band x Fuel tank frame5253038
Rear side plate x Front side plate1001,02074
Union x Fuel shutoff valve for fuel pipe filter pipe
for others31
18316
18423
13
Fuel tank bracket x Fuel tank valve case8.28473 in.´lbf
Fuel tank valve cover x Fuel tank valve case8.28473 in.´lbf
Fuel tank frame x Body60.261444
Performance rod x Body39.240029
Performance rod x Fuel tank band18.118513
Fuel shutoff valve core x Delivery pipe3535726
Fuel shutoff valve coil x Core1515311
Fuel temperature sensor x Delivery pipe20.420815
Fuel pressure sensor x Delivery pipe24.625118
Fuel pressure sensor x Fuel main pipe68.670051
Fuel inlet hose x Fuel pressure regulator9.910088 in.´lbf

FI2553
SST
S04600
Fuel
Pump
Connector
S05326
Plug SF±2
± SFI (5S±FE)SFI SYSTEM
1435 Author: Date:
(b) When installing the battery, be especially careful not to in-
correctly connect the positive (+) and negative (±) cables.
(c) Do not permit parts to receive a severe impact during re-
moval or installation. Handle all SFI parts carefully, espe-
cially the ECM.
(d) Be careful during troubleshooting as there are numerous
transistor circuit, and even slight terminal contact can
cause further troubles.
(e) Do not open the ECM cover.
(f) When inspecting during rainy weather, take care to pre-
vent entry of water. Also, when washing the engine
compartment, prevent water from getting on the SFI parts
and wiring connectors.
(g) Parts should be replaced as an assembly.
(h) Care should be taken when pulling out and inserting wir-
ing connectors.
(1) Release the lock and pull out the connector, pulling
on the connectors.
(2) Fully insert the connector and check that it is locked.
(i) Use SST for inspection or test of the injector or its wiring
connector.
SST 09842±30070
8. FUEL SYSTEM
(a) When disconnecting the high fuel pressure line, a large
amount of gasoline will spill out, so observe these proce-
dures:
(1) Disconnect the fuel pump connector.
(2) Start the engine. After the engine has stopped on
its own, turn the ignition switch OFF.
(3) Put a container under the connection.
(4) Slowly loosen the connection.
(5) Disconnect the connection.
(6) Plug the connection with a rubber plug.
(7) Reconnect the fuel pump connector.

S05523
New Gasket
FI1654
SST
30 cm Fulcrum Length
FI0420
Injector
GrommetO±Ring
Delivery PipeCORRECT
WRONG
± SFI (5S±FE)SFI SYSTEM
SF±3
1436 Author: Date:
(b) When connecting the union bolt on the high pressure pipe
union, observe these procedures:
(1) Always use 2 new gaskets.
(2) Tighten the union bolt by hand.
(3) Tighten the union bolt to the specified torque.
Torque: 29 N´m (300 kgf´cm, 21 ft´lbf)
(c) When connecting the flare nut on the high pressure pipe
union, observe these procedures:
(1) Apply a light coat of engine oil to the flare nut, and
tighten the flare nut by hand.
(2) Using SST, tighten the flare nut to specified torque.
SST 09631±22020
NOTICE:
Do not rotate the fuel pipe, when tightening the flare nut.
Torque: 28 N´m (285 kgf´cm, 21 ft´lbf) for using SST
HINT:
Use a torque wrench with a fulcrum length of 30 cm (11.81 in.).
(d) Observe these precautions when removing and installing
the injectors.
(1) Never reuse the O±ring.
(2) When placing a new O±ring on the injector, take
care not to damage it in any way.
(3) Coat a new O±ring with spindle oil or gasoline be-
fore installing±never use engine, gear or brake oil.

S05331
SF0D7±03
S05327
Fuel Inlet Hose
S05522
SF±6
± SFI (5S±FE)FUEL PUMP
1439 Author: Date:
FUEL PUMP
ON±VEHICLE INSPECTION
1. CHECK FUEL PUMP OPERATION
(a) Connect a TOYOTA hand±held tester to the DLC3.
(b) Turn the ignition switch ON and push the TOYOTA hand±
held tester main switch ON.
NOTICE:
Do not start the engine.
(c) Select the ACTIVE TEST mode on the TOYOTA hand±
held tester.
(d) Please refer to the TOYOTA hand±held tester operator's
manual for further details.
(e) If you have no TOYOTA hand±held tester, connect the
positive (+) and negative (±) leads from the battery to the
fuel pump connector. (See step 7)
(f) Check that there is pressure in the fuel inlet hose from the
fuel filter.
HINT:
If there is fuel pressure, you will hear the sound of fuel flowing.
If there is no pressure, check the fusible link, fuses, EFI main
relay, fuel pump, ECM and wiring connections.
(g) Turn the ignition switch OFF.
(h) Disconnect the TOYOTA hand±held tester from the
DLC3.
2. CHECK FUEL PRESSURE
(a) Check the battery positive voltage is above 12 V.
(b) Disconnect the negative (±) terminal cable from the bat-
tery.
(c) Remove the union bolt and 2 gaskets, and disconnect the
fuel inlet hose from the fuel filter outlet.
CAUTION:

Put a shop towel under the fuel filter.

Slowly loosen the union bolt.

S05328
Fuel Inlet
Hose
Gasket
SST (Union)GasketSST (Union Bolt)
SST
(Gauge)
Gasket
S04508
Ohmmeter
4
5
± SFI (5S±FE)FUEL PUMP
SF±7
1440 Author: Date:
(d) Install the fuel inlet hose and SST (pressure gauge) to the
fuel filter outlet with the 3 gaskets and SST (union bolt).
SST 09268±45014 (09268±41190, 90405±06167)
Torque: 29 N´m (300 kgf´cm, 21 ft´lbf)
(e) Wipe off any splattered gasoline.
(f) Reconnect the negative (±) terminal cable to the battery.
(g) Connect a TOYOTA hand±held tester to the DLC3.
(See step 1 in check fuel pump operation (a) to (e))
(h) Measure the fuel pressure.
Fuel pressure:
301 ± 347 kPa (3.1 ± 3.5 kgf/cm
2, 44 ± 50 psi)
If pressure is high, replace the fuel pressure regulator.
If pressure is low, check the fuel hoses, fuel hose connections,
fuel pump, fuel filter and fuel pressure regulator.
(i) Disconnect the TOYOTA hand±held tester from the
DLC3.
(j) Start the engine.
(k) Measure the fuel pressure at idle.
Fuel pressure:
301 ± 347 kPa (3.1 ± 3.5 kgf/cm
2, 44 ± 50 psi)
(l) Stop the engine.
(m) Check that the fuel pressure remains as specified for 5
minutes after the engine has stopped.
Fuel pressure:
147 kPa (1.5 kgf/cm
2, 21 psi) or more
If pressure is not as specified, check the fuel pump, pressure
regulator and/or injectors.
(n) After checking fuel pressure, disconnect the negative (±)
terminal cable from the battery and carefully remove the
SST to prevent gasoline from splashing.
SST 09268±45014
(o) Reconnect the fuel inlet hose with 2 new gaskets and the
union bolt.
Torque: 29 N´m (300 kgf´cm, 21 ft´lbf)
(p) Reconnect the negative (±) terminal cable to the battery.
(q) Check for fuel leaks. (See page SF±1)
3. REMOVE REAR SEAT CUSHION
4. REMOVE FLOOR SERVICE HOLE COVER
5. DISCONNECT FUEL PUMP & SENDER GAUGE CON-
NECTOR
6. INSPECT FUEL PUMP RESISTANCE
Using an ohmmeter, measure the resistance between terminals
4 and 5.
Resistance: 0.2 ± 3.0 W at 20°C (68°F)
If the resistance is not as specified, replace the fuel pump.

SF0D9±03
S04583
S04592
Vinyl Bag
± SFI (5S±FE)FUEL PUMP
SF±11
1444 Author: Date:
REMOVAL
CAUTION:
Do not smoke or work near an open flame when working on
the fuel pump.
1. REMOVE REAR SEAT CUSHION
2. REMOVE FLOOR SERVICE HOLE COVER
(a) Take out the floor carpet.
(b) Remove the service hole cover.
HINT:
At the time of installation, please refer to the following items.
Check for fuel leakage.
3. DISCONNECT FUEL PUMP & SENDER GAUGE CON-
NECTOR
4. REMOVE NO.1 FUEL TANK PROTECTOR
Remove the 2 bolts and No.1 fuel tank protector.
Torque: 4 N´m (40 kgf´cm, 35 in.´lbf)
5. DISCONNECT FUEL TUBE (FUEL TUBE CONNEC-
TOR)
CAUTION:

Perform disconnecting and connecting operations of
the fuel tube connector (quick type) after observing
the precautions.

As there is retained pressure in the fuel pipe line, pre-
vent it from splashing inside the vehicle compart-
ment.
6. REMOVE FUEL PUMP ASSEMBLY FROM FUEL TANK
(a) Remove the 6 bolts and fuel tank vent tube set plate.
Torque: 4 N´m (40 kgf´cm, 35 in.´lbf)
(b) Pull out the fuel pump assembly.
(c) Remove the gasket from the pump assembly.
NOTICE:

Do not damage the fuel pump filter.

Be careful that the arm of the sender gauge should
not bent.
HINT:
At the time of installation, please refer to the following items.
Install a new gasket to the pump assembly.