Toyota Corolla 2004 Repair Manual - FUEL SYSTEM

ON–VEHICLE INSPECTION

123

54

A65704

11–5

–FUEL FUEL SYSTEM

110FG–01

1. CHECK FUEL PUMP OPERATION

(a) Connect the hand–held tester to the DLC3.
(b) Turn the ignition switch ON and hand–held tester main

switch ON.

NOTICE:
Do not start the engine.

(c) Select the active test mode on the hand–held tester.
(d) Please refer to the hand–held tester operator’s manual

for further details.

(e) If you have no hand–held tester, connect the positive (+)

lead form the battery to terminal 4 of the connecter, and
the negative (–) lead to terminal 5.

NOTICE:

 These tests must be done quickly (within 10 seconds)

to prevent the coil burning out.

 Keep the fuel pump as far away from the battery as

possible.

 Always do the switching at the battery side.

Fuel Tube Connector

A62159

2. CHECK FUEL PRESSURE

(a) Prepare for inspection.

(1) Purchase a new fuel tube, and take out the fuel tube

connector from its tube.
HINT:
Part No. 23901–0D010
(b) Work for prevent gasoline from spilling out.

(See page 11–1)
(c) Disconnect the EFI fuel pipe clamp. (See page 11–1)
(d) Disconnect the fuel tube from the fuel main tube.

(See page 11–1)

2004 COROLLA (RM1037U)

972Author: Date:

11–6

–FUEL FUEL SYSTEM

Fuel Tube

SST (Hose)

SST (Clip)

SST (Gauge)

SST (T–joint)

SST (Hose)

Fuel Tube Connector

SST

A65093

(e) Install SST (pressure gauge) as shown in the illustration

by using the SST and fuel tube connector.

SST 09268–41047 (90467–13001, 95336–08070),

09268–45014 (09268–41200, 09268–41220,

09268–41250, 90467–13001)
(f) Wipe off any splattered gasoline.
(g) Start the engine.
(h) Measure the fuel pressure at idle.

Fuel pressure:

2

304 – 343 kPa (3.1 – 3.5 kgf⋅cm

, 44 – 50 psi)

(i) Stop the engine.
(j) Check that the fuel pressure remains as specified for 5

minutes after the engine has stopped.

Fuel pressure:

2

147 kPa (1.5 kgf⋅cm

, 21 psi) or more

If pressure is not as specified, check the fuel pump, pressure
regulator and/or injectors.
(k) After checking fuel pressure, disconnect the negative (–)

terminal cable from the battery and carefully, remove the
SST and fuel tube connector to prevent gasoline from the

splashing.
(l) Reconnect the fuel tube to fuel main tube.
(m) Install the EFI fuel pipe clamp.
(n) Check fuel leak. (See page 11–1)

2004 COROLLA (RM1037U)

973Author: Date: