Tacoma 2WD L4-2.4L (2RZ-FE) (1996)
Fuel Pressure: Testing and Inspection
1. Check that the battery positive voltage is above 12 volts.
2. Disconnect the negative (-) terminal cable from the battery.
3. Remove the union bolt and 2 gaskets, and disconnect the fuel inlet pipe from the delivery pipe.
HINT:
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Put a suitable container or shop rag under the delivery pipe.
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Slowly loosen the union bolt.
4. Install the fuel inlet pipe and SST (pressure gauge) to the delivery pipe with the 3 gaskets and SST (union bolt).
SST 09268-45012
Torque: 29 N.m (300 kgf.cm, 22 ft.lbf)
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Wipe off any splattered gasoline.
5. Connect the TOYOTA hand-held tester to the DLC3.
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Turn the ignition switch ON and TOYOTA hand-held tester main switch ON.
NOTICE: Do not start the engine.
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Select the active test mode on the TOYOTA hand-held tester.
Please refer to the TOYOTA hand-held tester operator's manual for further details.
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If you have no TOYOTA hand-held tester, connect the positive (+) and negative (-) leads from the battery to the fuel pump connector.
6. Reconnect the negative (-) terminal cable to the battery.
7. Turn the ignition switch ON.
8. Measure the fuel pressure.
Fuel pressure: 265-304 kPa
(2.7-3.1 kgf/sq.cm, 38-44 psi)
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If pressure is high, replace the fuel pressure regulator.
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If pressure is low, check these parts:
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Fuel hoses and connections
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Fuel pump
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Fuel filter
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Fuel pressure regulator
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Injectors
9. Remove the TOYOTA hand-held tester.
10. Start the engine.