Sfi System (2UZ-FE): Other Toyota Tundra I рестайлинг

PRECAUTION

HINT

Any DTC retained by the computer will be erased when the negative (-) terminal cable is removed from the battery. Therefore, if necessary, read the diagnosis before removing the negative (-) terminal cable from the battery.

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1. BEFORE WORKING ON FUEL SYSTEM DISCONNECT NEGATIVE (-) TERMINAL CABLE FROM BATTERY
2. DO NOT SMOKE OR WORK NEAR AN OPEN FLAME WHEN WORKING ON THE FUEL SYSTEM
3. KEEP GASOLINE AWAY FROM RUBBER OR LEATHER PARTS
4. MAINTENANCE PRECAUTIONS In the event of engine misfire, these precautions should be taken. Check proper connection to battery terminals, etc. After repair work, check that the ignition coil terminals and all other ignition system lines are reconnected securely. When cleaning the engine compartment, be especially careful to protect the electrical system from water. Precautions when handling the oxygen sensor. Do not allow oxygen sensor to drop or hit against an object. Do not allow the sensor to come into contact with water.
5. IF VEHICLE IS EQUIPPED WITH MOBILE RADIO SYSTEM (HAM, CB, ETC.) If the vehicle is equipped with a mobile communication system, refer to the precaution in the appropriate article.
6. AIR INDUCTION SYSTEM Separation of the engine oil dipstick, oil filler cap, PCV hose, etc. may cause the engine to run out of tune. Disconnection, looseness or cracks in the parts of the air induction system between the throttle body and cylinder head will allow air suction and cause the engine to run out of tune.
7. ELECTRONIC CONTROL SYSTEM Before removing SFI wiring connectors, terminals, etc., first disconnect the power by either turning the ignition switch OFF or disconnecting the negative (-) terminal cable from the battery. HINT: Always check the diagnostic trouble code before disconnecting the negative (-) terminal cable from the battery. When installing the battery, be especially careful not to incorrectly connect the positive (+) and negative (-) cables. Do not permit parts to receive a severe impact during removal or installation. Handle all SFI parts carefully, especially the ECM. Be careful during troubleshooting as there are numerous transistor circuits, and even slight terminal contact can cause further troubles. Do not open the ECM cover. When inspecting in rainy weather, take care to prevent an intrusion of water. Also, when washing the engine compartment, prevent water from getting on the SFI parts and wiring connectors. Parts should be replaced as an assembly. Care should be taken when pulling out and inserting wiring connectors. Release the lock and pull out the connector, pulling on the connectors. Fully insert the connector and check that it is locked. Use SST for inspection or test of the injector or its wiring connector. SST 09842-30070
8. FUEL SYSTEM When disconnecting the high fuel pressure line, a large amount of gasoline will spill out, so observe these procedures: Disconnect the fuel pump connector. Start the engine. After the engine has stopped on its own, turn the ignition switch OFF. Put a container under the connection. Slowly loosen the connection. Disconnect the connection. Plug the connection with a rubber plug. Reconnect the fuel pump connector. When connecting the union bolt (fuel pressure pulsation damper) on the high pressure pipe union, observe these procedures: Always use 2 new gaskets. Tighten the union bolt by hand. Using SST, tighten the union bolt to the specified torque. SST 09612-24014 (09617-24011) Torque: 33 N.m (340 kgf.cm, 24 ft.lbf) for use with SST 39 N.m (400 kgf.cm, 29 ft.lbf) HINT: Use a torque wrench with a fulcrum length of 30 cm (11.81 in.). When connecting the flare nut on the high pressure pipe union, observe these procedures: Apply a light coat of engine oil to the flare nut, and tighten the flare nut by hand. Using SST, tighten the flare nut to the specified torque. SST 09023-38400 NOTE: Do not rotate the fuel filter outlet, when tightening the flare nut. Torque: 28 N.m (285 kgf.cm, 21 ft.lbf) for use with SST 34.3 N.m (350 kgf.cm, 25 ft.lbf) HINT: Use a torque wrench with a fulcrum length of 30 cm (11.81 in.). Observe these precautions when removing and installing the injectors. Never reuse the O-ring. When placing a new O-ring on the injector, take care not to damage it in any way. Coat a new O-ring with spindle oil or gasoline before installing-never use engine, gear or brake oil. Install the injector to the delivery pipe and lower intake manifold as shown in the illustration. Before installing the injector, must apply spindle oil or gasoline on the place where a delivery pipe or an intake manifold touches an O-ring of the injector. Quick Type A: Observe these precautions when disconnecting the fuel tube connector: Check that there is any dirt or the like on the pipe and around the connector before disconnecting them and clean the dirt away. Be sure to disconnect by hands. When the connector and the pipe are stuck, turn and pull the connector to free to disconnect and pull it out. Do not use any tools at this time. Inspect if there is any dirt or the like on the seal surface of the disconnected pipe and clean it away. Prevent the disconnected pipe and connector from being damaged or mixed with foreign objects by covering them with a vinyl bag. Quick Type A: Observe these precautions when connecting the fuel tube connector: Do not reuse the retainer removed from the pipe. Must use hands to remove the retainer from the pipe. Check that there is any damage or foreign objects on the connected part of the pipe. Match the axis of the connector with axis of the pipe, and push in the connector until the connector makes a "click" sound. In case that the connections is tight, apply small amount of fresh engine oil on the tip of the pipe. After having finished the connection, check if the pipe and the connector are securely connected by pulling them. Check if there is any fuel leakage. Quick Type B: Observe these precautions when disconnecting the fuel tube connector: Check that there is any dirt like mud in the pipe and around the connector before disconnecting them and clean the dirt away. Be sure to disconnect them with hands. When the connector and the pipe are stuck, push and pull the connector to free them. And then disconnect and pull it out. Do not use any tools at this time. Inspect if there is any dirt or the likes on the seal surface of the disconnected pipe and clean it away. Prevent the disconnected pipe and connector from being damaged and foreign objects mixing in by covering them with a vinyl bag. Quick Type B: Observe these precautions when connecting the fuel tube connector: Check that there is any damage or foreign objects in the connected part of the pipe. Match the axis of the connector with the axis of the pipe, and push into the connector until the connector makes a "click" sound. In case that the connection is tight, apply little amount of fresh engine oil on the tip of the pipe. After having finished the connection, check if the pipe and the connector are securely connected by pulling them. Check that there is any fuel leak. Observe these precautions when handling nylon tube. Pay attention not to turn the connected part of the nylon tube and the quick connector by force when connecting them. Pay attention not to kink the nylon tube. Do not remove the EPDM protector from the outside of the nylon tube. Must not close the piping with the nylon tube by bending it. Check that there is any fuel leak after maintenance anywhere on the fuel system. Connect a hand-held tester to the DLC3. Turn the ignition switch ON, and push the hand-held tester main switch ON. NOTE: Do not start the engine. Select the ACTIVE TEST mode on the hand-held tester. Please refer to the hand-held tester operator's manual for further details. Pinch the fuel return hose. The pressure in the high pressure line will rise to approx. 392 kPa (4 kgf/cm 2 , 57 psi). In this state, check to see that there are no leaks from any part of the fuel system. NOTE: Always pinch the hose. Avoid bending as it may cause the hose to crack. Turn the ignition switch OFF. Disconnect the hand-held tester from the DLC3.

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1. CHECK FUEL PUMP OPERATION Connect a hand-held tester to the DLC3. Turn the ignition switch ON, and push the hand-held tester main switch ON. NOTE: Do not start the engine. Select the ACTIVE TEST mode on the hand-held tester. Please refer to the hand-held tester operator's manual for further details. 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. Turn the ignition switch OFF. Disconnect the hand-held tester from the DLC3.
2. CHECK FUEL PRESSURE Check the battery positive voltage is above 12 V. Disconnect the negative (-) terminal cable from the battery. Remove the front fuel pipe from the LH delivery pipe (See «REMOVAL»(ref-181796-S20259603222006080100000) ). 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) Wipe off any splattered gasoline. Reconnect the negative (-) terminal cable to the battery. Connect a hand-held tester to the DLC3 (See step 1 in check fuel pump operation (a) to (e)). Measure the fuel pressure. Fuel pressure: 265 - 304 kPa (2.7 - 3.1 kgf/cm 2 , 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. Disconnect the hand-held tester from the DLC3. Start the engine. Measure the fuel pressure at idle. Fuel pressure: 265 - 304 kPa (2.7 - 3.1 kgf/cm 2 , 38 - 44 psi) Stop the engine. Check that the fuel pressure remains as specified for 5 minutes after the engine has stopped. Fuel pressure: 147 kPa (1.5 kgf/cm 2 , 21 psi) or more If pressure is not as specified, check the fuel pump, pressure regulator and/or injectors. After checking fuel pressure, disconnect the negative (-) terminal cable from the battery and carefully remove the SST to prevent gasoline from splashing. SST 09268-45014 Reinstall the front fuel pipe to the LH delivery pipe (See «INSTALLATION»(ref-181796-S29374995092006080100000) ). Reconnect the negative (-) terminal cable to the battery. Check for fuel leaks (See «PRECAUTION»(ref-181796-S31943288342005080400000) ).

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COMPONENTS

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