Toyota Corolla Repair Manual: Fuel system
Precaution
1. Before working on fuel system, disconnect negative (–) terminal cable
from
battery
2. Do not smoke or work near an open flame when working on fuel system
3. Keep gasoline away from rubber or leather parts
4. Work for prevent gasoline from spilling out

- Remove the rear seat cushion.
(, 72–8)
- remove rear floor service hole cover.
- disconnect the fuel pump connector.
- start the engine. After the engine has stopped on its own,
turn the ignition switch to lock.
- disconnect negative (–) terminal cable from battery.
- connect the fuel pump connector.
- install rear floor service hole cover.
- install the rear seat cushion.
5. Fuel system

- When disconnecting the high fuel pressure line, a large
amount of gasoline will spill out, so observe these procedures.
- Work for prevent gasoline from spilling out.
- Disconnect the fuel tank main tube.
- Drain the fuel remained inside the fuel tank main
tube.
- Protect the disconnected fuel tank main tube from
damage and foreign material by covering it with a vinyl
bag.

- Put a container under the connection.

- Observe these precautions when removing and installing
the fuel injector.
- Never reuse an o–ring.
- When placing a new o–ring on the fuel injector, take
care not to damage it in any way.
- Coat a new o–ring with spindle oil or gasoline before
installing.
Notice
:
never use engine, gear or brake oil.

- Install the fuel injector to the fuel delivery pipe and cylinder
head, as shown in the illustration. Before installing the
fuel injector, be sure to apply spindle oil or gasoline on the
place where the fuel delivery pipe touches an o–ring of
the fuel injector.

- Observe these precautions when disconnecting the fuel
delivery pipe.
Hint
:
the structure of the metallic connector is shown as illustration.

- Remove the efi fuel pipe clamp.
- Get the metallic connector of the fuel tube assembly,
pull it out towards the rear and hold it as it is.

- Assemble sst to the connection as shown.
Sst 09268–21010

- Turn sst, align the retainers inside the connector
with sst chamfered parts and insert sst into the
connector.
- Slide sst and the connector together towards the
fuel tube assembly.

- Observe these precautions when disconnecting the fuel
tube connector (quick type).
- Remove the efi fuel pipe clamp.
- Check if there is any dirt like mud on the pipe and
around the connector before disconnecting them
and clean the dirt away.

- Be sure to disconnect with hands.
- When the connector and the pipe are stuck, pinch
the retainer between the hands, push and pull the
connector to free to disconnect and pull it out.
Notice
:
do not use any tool at this time.
- Inspect if there is any dirt or the likes on the seal surface
of the disconnected pipe and clean it away.

- Prevent the disconnected pipe and connector from
damaging and mixing foreign objects by covering
them with a vinyl bag.

- Observe these precautions when connecting the fuel
tube connector (quick type).
- Match the axis of the connector with axis of the pipe,
and push in the connector until retainer makes a
”click” sound. In case that the connections is tight,
apply little amount of new engine oil on the tip of the
pipe.
- After having finished the connection, check if the
pipe and the connector are securely connected by
pulling them.
6. Check fuel leak

- Check that there are no fuel leaks after doing maintenance
anywhere on the fuel system.
- Connect the hand–held tester to the dlc3.
- Turn the ignition switch on and hand–held tester
main switch on.
- Select the active test mode on the hand–held tester.
- Please refer to the hand–held tester operator’s
manual for further details.
- If you have no hand–held tester, connect the positive
(+) and negative (–) leads from the battery to the
fuel pump connector.
- Check that there are no leaks from any part of the
fuel system.
- Turn the ignition switch to lock.
- Disconnect the hand–held tester from the dlc3.
1. Check fuel pump operation
Connect the hand–held tester to the dlc3.
turn the ignition switch on and hand–held tester main
switch on.
Notice:
do not start the engine.
s ...
Other materials:
Inspection procedure
1 Check side squib(lh) circuit(airbag sensor assy center – front
seat airbag assy lh)
Disconnect the negative (–) terminal cable from the battery,
and wait at least for 90 seconds.
disconnect the connectors between the airbag sensor
assy center and the front seat airbag assy (lh ...
Inspection procedure
Hint:
start the inspection from step 1 in case of using the hand–held tester and start
from step 2 in case of not
using hand–held tester.
1 Inspect brake actuator assy
Select the datalist mode on the hand–held tester.
check the operation sound of the abs pump motor when operating it ...
If your vehicle overheats
The following may indicate that your vehicle is overheating.
● Vehicles without a multi-information display: The high engine coolant temperature
warning light comes on or a loss of power is experienced.
Vehicles with a multi-information display: The engine coolant temperature gauge&n ...