Supra L6-2997cc 3.0L DOHC MFI (1998)
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Fuel Pressure: Testing and Inspection
INSPECTION
CHECK FUEL PRESSURE
(a) Check the battery positive voltage is above 12 V.
(b) Disconnect the negative (-) terminal cable from the battery.
(c) Remove the union bolt and 2 gaskets, disconnect the fuel inlet hose from the fuel pipe support.
NOTICE:
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Put a shop towel under the fuel pipe support.
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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.
(f) Connect the TOYOTA hand-held tester to the DLC3.
(1) Turn the ignition switch ON and TOYOTA hand-held tester main switch ON.
NOTICE: Do not start the engine.
(2) Select the active test mode on the TOYOTA hand-held tester.
(3) Please refer to the TOYOTA hand-held tester operator's manual for further details.
(4) If you have no TOYOTA hand-held tester, connect the positive (+) and negative (-) leads from the battery to the fuel pump connector.
(g) Measure the fuel pressure.
Fuel pressure: 301-347 kPa (3.1-3.5 kgf/Sq. cm, 44-50 psi)