TOYOTA CAMRY 2000 Service Repair Manual

B. Inspect fuel pump operation
Connect the positive (+) lead from the battery terminal 4 of the
connector, and the negative (±) lead
to terminal 5. Check that the fuel pump operates.
NOTICE:
wThese tests must be performed quickly (within 10
seconds) to prevent the coil from burning out.
wKeep the fuel pump a: far away from the battery as
possible.
wAlways perform switching at the battery side.
If operation is not as specified, replace the fuel pump.
5. RECONNECT FUEL PUMP & SENDER GAUGE
CONNECTOR
6. INSTALL REAR SEAT CUSHION
7. CONNECT NEGATIVE (±) TERMINAL CABLE TO
BATTERY
FUEL PUMP INSPECTION
1. DISCONNECT NEGATIVE (±) TERMINAL CABLE
FROM BATTERY
CAUTION: Work must be started after 90 seconds from
the time the Ignition switch Is turned to the 'LOCK'
position and the negative (±) terminal cable is discon±
nected from the battery.
4. INSPECT FUEL PUMP
A. Inspect fuel pump resistance
Using an ohmmeter, measure the resistance between
terminals 4 and 5.
Resistance (Cold):
0.2±3.0 W
If the resistance is not as specified, replace the fuel
pump. 2. REMOVE REAR SEAT CUSHION
3. DISCONNECT FUEL PUMP & SENDER GAUGE CON±
NECTOR
± 5S±FE ENGINEMFI/SFI SYSTEMEG1±181

1. DISCONNECT NEGATIVE (±) TERMINAL CABLE
FROM BATTERY
CAUTION: Work must be started after 90 seconds from
the time the ignition switch is turned to the ªLOCKº
position and the negative (±) terminal cable is discon±
nected from the battery.
2. REMOVE REAR SEAT CUSHION
FUEL PUMP REMOVAL
CAUTION: Do not smoke or work near an open flame
when working on the fuel pump.
COMPONENTS FOR REMOVAL AND
INSTALLATION
± 5S±FE ENGINEMFI/SFI SYSTEMEG1±182

5. DISCONNECT FUEL PIPE AND HOSE FROM FUEL
PUMP BRACKET
CAUTION: Remove the fuel filter cap to prevent the fuel
from flowing out.
(a) Using SST, disconnect the outlet pipe from the pump bracket.
SST 09631±22020
(b) Disconnect the return hose from the pump bracket. 3. REMOVE FLOOR SERVICE HOLE COVER
(a) Disconnect the fuel pump connector.
(b) Remove the 5 screws and service hole cover.
4. REMOVE FUEL PUMP LEAD WIRE
6. REMOVE FUEL PUMP BRACKET ASSEMBLY FROM
FUEL TANK
(a) Remove the 8 bolts.
(b) Pull out the pump bracket assembly.
(c) Remove the gasket from the pump bracket.
± 5S±FE ENGINEMFI/SFI SYSTEMEG1±183

FUEL PUMP DISASSEMBLY
1. REMOVE FUEL PUMP FROM FUEL PUMP BRACKET
(a) Remove the fuel pump lead wire.
(b) Pull off the lower side of the fuel pump from the pump
bracket.
(c) Disconnect the fuel hose from the fuel pump, and
remove the fuel pump.
(d) Remove the rubber cushion from the fuel pump.
2. REMOVE FUEL SENDER GAUGE FROM FUEL PUMP
BRACKET
(a) Disconnect the fuel sender gauge connector.
(b) Remove the 2 screws and sender gauge.
COMPONENTS FOR DISASSEMBLY AND
ASSEMBLY
± 5S±FE ENGINEMFI/SFI SYSTEMEG1±184

FUEL PUMP ASSEMBLY
(See Components for Disassembly and Assembly)
1. INSTALL CONNECTOR
Install the gasket, connector and connector support
with the 2 screws.
2. INSTALL FUEL PUMP FILTER TO FUEL PUMP
Install the pump filter with a new clip.
4. INSTALL FUEL PUMP TO FUEL PUMP BRACKET
(a) Install the rubber cushion to the fuel pump.
(b) Connect the fuel hose to the outlet port of the fuel
pump.
(c) Install the fuel pump by pushing the lower side of the
fuel pump.
(d) Install the fuel pump connector. 3. INSTALL FUEL SENDER GAUGE TO FUEL PUMP
BRACKET
(a) Install the sender gauge with the 2 screws.
(b) Connect the fuel sender gauge connector. 4. REMOVE CONNECTOR
Remove the 2 screws, connector support, connector
and gasket. 3. REMOVE FUEL PUMP FILTER FROM FUEL PUMP
(a) Using a small screwdriver, remove the clip.
(b) Pull out the pump filter.
± 5S±FE ENGINEMFI/SFI SYSTEMEG1±185

2. CONNECT FUEL PIPE AND HOSE TO FUEL PUMP
BRACKET
(a) Using SST, connect the outlet pipe to the pump
bracket.
SST 09631±22020
Torque: 28 N±m (285 kgf±cm, 21 ft±lbf)
(b) Connect the return hoses to the pump bracket.
3. CHECK FOR FUEL LEAKAGE
(See page EG1±176)
4. CONNECT FUEL PUMP LEAD WIRE
5. INSTALL FLOOR SERVICE HOLE COVER
(a) Install the service hole cover with the 5 screws.
(b) Connect the fuel pump (with fuel sender gauge)
connector.
FUEL PUMP INSTALLATION
(See Components for Removal and Installation)
1. INSTALL FUEL PUMP BRACKET ASSEMBLY TO
FUEL TANK
(a) Install a new gasket to the pump bracket.
(b) Insert the pump bracket assembly into the fuel tank.
6. INSTALL REAR SEAT CUSHION
7. CONNECT NEGATIVE (±) TERMINAL CABLE TO
BATTERY(c) Install the pump bracket with the 8 screws.
Torque: 3.9 N±m (40 kgf±cm, 35 in.±Ibf)
± 5S±FE ENGINEMFI/SFI SYSTEMEG1±186

2. DISCONNECT FUEL RETURN PIPE FROM FUEL
PRESSURE REGULATOR
(a) Put a suitable container or shop rag under the pres±
sure regulator.
(b) Remove the union bolt and 2 gaskets, and disconnect
the return pipe from the pressure regulator.
HINT: Slowly loosen the union bolt.
FUEL PRESSURE REGULATOR
ON±VEHICLE INSPECTION
INSPECT FUEL PRESSURE
(See page EG1±178)
COMPONENTS FOR REMOVAL AND
INSTALLATION
FUEL PRESSURE REGULATOR REMOVAL
1. DISCONNECT VACUUM SENSING HOSE FROM
FUEL PRESSURE REGULATOR
± 5S±FE ENGINEMFI/SFI SYSTEMEG1±187

FUEL PRESSURE REGULATOR
INSTALLATION
(See Components for Removal and Installation)
1. INSTALL FUEL PRESSURE REGULATOR
(a) Apply a light coat of gasoline to a new O±ring, and
install it to the pressure regulator.
2. CONNECT FUEL RETURN PIPE TO FUEL PRESSURE
REGULATOR
Install the return pipe with 2 new gaskets and the
union bolt.
Torque: 19 N±m (195 kgf±cm, 14 ft±lbf)
3. REMOVE FUEL PRESSURE REGULATOR
(a) Remove the 2 bolts, and pull out the pressure regula±
tor.
(b) Remove the O±ring from the pressure regulator.
3. CONNECT VACUUM SENSING HOSE TO FUEL
PRESSURE REGULATOR
4. CHECK FOR FUEL LEAKAGE
(See page EG1±176) (b) Install the pressure regulator with the 2 bolts.
Torque: 5.4 N±m (55 kgf±cm, 48 in.±lbf)
± 5S±FE ENGINEMFI/SFI SYSTEMEG1±188

2. INSPECT INJECTOR RESISTANCE
(a) Disconnect the injector connector.
(b) Using an ohmmeter, measure the resistance between
the terminals.
Resistance:
Approx. 13.8

If the resistance is not as specified, replace the injector.
(c) Reconnect the injector connector.
ON±VEHICLE INSPECTION
1. INSPECT INJECTOR OPERATION
Check operation sound from each injector.
(a) With the engine running or cranking, use a sound
scope to check that there is normal operating noise in
proportion to engine speed.
(b) If you have no sound scope, you can check the injec±
tor transmission operation with your finger.
If no sound or unusual sound is heard, check the
wiring connector, injector or injection signal from the
ECM.
INJECTOR
± 5S±FE ENGINEMFI/SFI SYSTEMEG1±189

COMPONENTS FOR REMOVAL AND
INSTALLATION
± 5S±FE ENGINEMFI/SFI SYSTEMEG1±190