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.

Fuel Pump Toyota
Fig. 15: Connecting Toyota Hand-Held Tester To DLC3 Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

e. Check that the pulsation damper screw rises up when the fuel pump operates.

If operation is not as specified, check the fusible link, fuses, EFI main relay, fuel pump, ECM and wiring connections.

f. Turn the ignition switch OFF.

g. 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 battery.

2004 ENGINE SFI System - Sequoia c. Remove the front fuel pipe from the LH delivery pipe. (See REMOVAL )

c. Remove the front fuel pipe from the LH delivery pipe. (See REMOVAL )

Pulsation Damper

Fig. 16: Checking Pulsation Damper

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

Fig. 16: Checking Pulsation Damper

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

d. Install the front fuel pipe and SST (pressure gauge) to the delivery pipe with 3 lower gaskets and SST (adaptor).

SST 09268-45014 (09268-41190, 90405-06167) Torque: 39 N.m (400 kgf.cm, 29 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 steps (a) to (e) under 1

2004 ENGINE SFI System - Sequoia

Step Installing Pressure Gauge

Fig. 17: Installing Pressure Gauge

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

Fig. 17: Installing Pressure Gauge

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

h. Measure the fuel pressure.

Fuel pressure: 265 - 304 kPa (2.7 - 3.1 kgf/cm2 , 38 - 44 psi)

If pressure is high, replace the fuel pressure regulator.

If pressure is low, check the fuel hoses and 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: 265 - 304 kPa (2.7 - 3.1 kgf/cm2 , 38 - 44 psi)

l. Stop the engine.

m. Check that the fuel pressure remains as specified for 5 minutes after the engine has stopped.

2004 ENGINE SFI System - Sequoia

Do It Yourself Car Diagnosis

Do It Yourself Car Diagnosis

Don't pay hundreds of dollars to find out what is wrong with your car. This book is dedicated to helping the do it yourself home and independent technician understand and use OBD-II technology to diagnose and repair their own vehicles.

Get My Free Ebook


Responses

  • baldassarre
    What to do for repair the idle when remove the battery on a toyota yaris?
    7 years ago
  • Genaro Roberts
    How to install fuel pressure damper on 2000 toyota sienna?
    7 years ago

Post a comment