B01578
Injector SST
(Attachment) Fuse Tube
(On Vehicle)
SST
(Hose)
SST
(Adapter)
SST
(Clamp)
SF0NC±03
B01938
SST (Attachment)SST (Hose)
Disconnect
Fuel Inlet Hose
B01576
SST (Hose)
SST (Adapter)
SST
(Clamp)O±Ring
Vinyl Hose
B01982
LEXUS
Hand±Held
Tester SF±22
± SFI (2JZ±GE)INJECTOR
1488 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
INSPECTION
1. INSPECT INJECTOR INJECTION
CAUTION:
Keep injector clear of sparks during the test.
(a) Remove the nut, and disconnect the fuel inlet hose from
the fuel main tube.
(b) Temporarily install SST (attachment) to the fuel main
tube.
SST 09268±41047 (09268±52011)
(c) Tighten the flare nut on the fuel main tube.
(See page SF±1)
(d) Connect SST (hose) to the SST (attachment).
SST 09268±41047
(e) Install the O±ring to the injector.
(f) Connect SST (hose) to the injector with SST (adapter),
and hold the injector and adapter with SST (clamp).
SST 09268±41047 (09268±41110, 09268±41300)
(g) Put the injector into the graduated cylinder.
CAUTION:
Install a suitable vinyl hose onto the injector to prevent
gasoline from splashing out.
(h) Connect the LEXUS hand±held tester to the DLC3.
(i) Connect the battery negative (±) terminal cable to the bat-
tery.
(j) Turn the ignition switch ON and LEXUS hand±held tester
main switch ON.
NOTICE:
Do not start the engine.
(k) Select the ACTIVE TEST mode on the LEXUS hand±held
tester.
(l) Please refer to the LEXUS hand±held tester operator's
manual for further details.
(m) If you have no LEXUS hand±held tester, connect the pos-
itive (+) and negative (±) leads from the battery to the fuel
pump connector. (See page SF±6)
B01982
LEXUS
Hand±Held
TesterSF0N2±05
B09511
Up
Screw
Pulsation Damper
B01958
Fuel Inlet Hose
A02818
SST
SST
(Union)
SST
(Adapter)
SF±6
± SFI (2JZ±GE)FUEL PUMP
1472 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
FUEL PUMP
ON±VEHICLE INSPECTION
1. CHECK FUEL PUMP OPERATION
(a) Connect a LEXUS hand±held tester to the DLC3.
(b) Turn the ignition switch ON and LEXUS hand±held tester
main switch ON.
NOTICE:
Do not start the engine.
(c) Select the ACTIVE TEST mode on the LEXUS hand±held
tester.
(d) Please refer to the LEXUS hand±held tester operator's
manual for further details.
(e) If you have no LEXUS hand±held tester, connect the pos-
itive (+) and negative (±) leads from the battery to the fuel
pump connector. (See step 3)
(f) Check that the pulsation damper screw rises up when the
fuel pump operates.
If there is no pressure, check the fusible link, fuses, EFI main
relay, fuel pump ECU, fuel pump, ECM and wiring connections.
(g) Turn the ignition switch OFF.
(h) Disconnect the LEXUS 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 pipe support.
NOTICE:
Put a shop towel under the fuel pipe support.
Slowly loosen the union bolt.
(d) Install the fuel inlet hose and SST (pressure gauge) to the
fuel pipe support with the 3 gaskets and SST (union and
adapter).
SST 09268±45014 (09268±41190, 90405±06167)
Torque: 29 N´m (300 kgf´cm, 21 ft´lbf)
(e) Wipe off any splattered gasoline.
