2003 LEXUS LS430 Factory Repair Manual

Page 4113 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 15: Connecting Hand-Held Tester DLC3 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
c. Select the ACTIVE TEST mode on the hand-held tester.  
d. Please refer to the hand-held tester operator'

Page 4114 of 4500

LEXUS LS430 2003  Factory Repair Manual gaskets and SST (union bolt). 
SST 09268-45014 (09268-41190, 90405-06167)  
Torque: 39 N.m (400 kgf.cm, 29 ft.lbf)  
Fig. 16: Checking Fuel Pressure
 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
e.

Page 4115 of 4500

LEXUS LS430 2003  Factory Repair Manual pressure regulator. 
i. Disconnect the hand-held tester from the DLC3.  
j. Start the engine.  
k. Measure the fuel pressure at idle. 
Fuel pressure: 304 to 343 kPa (3.1 to 3.5 kgf/cm2, 44 to 50 psi)

Page 4116 of 4500

LEXUS LS430 2003  Factory Repair Manual <0029004c004a001100030014001a001d0003003000480044005600580055004c0051004a0003003500480056004c0056005700440051004600480003002500480057005a00480048005100030037004800550050004c00510044004f005600030017000

Page 4117 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 18: Inspecting Fuel Pump Operation 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
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Page 4118 of 4500

LEXUS LS430 2003  Factory Repair Manual Using an ohmmeter, measure the resistance between the terminals.
Standard: 13.4 to 14.2 ohms at 20°C (68°F)  
HINT: 
If the resistance is not as specified, replace the injector. 
b. Inspect the inje

Page 4119 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 20: Disconnecting Main Fuel Pipe 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
f. Connect SST (hose) to the SST (union). 
SST 09268-41047

Page 4120 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 21: Installing O-Ring To Injector 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
g. Install a new O-ring to the injector.  
h. Connect SST (union and hose) to the injector, and hold the injector