REMOVAL
| CAUTION | Do not smoke or work near an open frame when working the fuel pump. |
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- REMOVE FUEL TANK (See FUEL TANK AND LINE )
- DISCONNECT FUEL PUMP & SENDER GAUGE CONNECTOR
- DISCONNECT FUEL MAIN TUBE AND RETURN TUBE FROM SUCTION PLATE (See PRECAUTION )
- REMOVE FUEL PUMP, SENDER GAUGE AND SUCTION PLATE ASSEMBLY FROM FUEL TANK Remove the 8 bolts. Remove the fuel pump, sender gauge and suction plate assembly. NOTE: Do not damage the fuel pump filter. Be careful not to bend the arm of the sender gauge. Remove the gasket from the fuel suction plate.
- REMOVE FUEL PUMP FROM SUCTION PLATE Disconnect the lead wire connector from the fuel pump. Pull out the lower side of the fuel pump from the suction plate. Disconnect the fuel hose from the fuel pump, and remove the fuel pump. Remove the rubber cushion from the fuel pump.
- REMOVE FUEL PUMP FILTER FROM FUEL PUMP Using a small screwdriver, pry out the clip. Pull out the pump filter.
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- INSPECT FUEL PUMP RESISTANCE Using an ohmmeter, measure the resistance between the terminals. Resistance: 0.2 - 3.0 ohm at 20°C (68°F) If the resistance is not as specified, replace the fuel pump.
- INSPECT FUEL PUMP OPERATION Connect the lead wire to the fuel pump. Connect the positive (+) lead from the battery to terminal 1 of the connector, and the negative (-) lead to terminal 2. Check that the fuel pump operates. NOTE: These tests must be done quickly (within 10 seconds) to prevent the coil from burning out. Keep the fuel pump as far away from the battery as possible. Always do switching at the battery side. If operation is not as specified, replace the fuel pump and/or read wire. Disconnect the lead wire to the fuel pump.
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- INSTALL FUEL PUMP FILTER TO FUEL PUMP Using a small screwdriver, push in the clip.
- INSTALL FUEL PUMP TO SUCTION PLATE Install the rubber cushion to the fuel pump. Connect the fuel hose to the outlet port of the fuel pump. Install the fuel pump by pushing the lower side of the fuel pump. Connect the lead wire connector to the fuel pump.
- INSTALL FUEL PUMP, SENDER GAUGE AND SUCTION PLATE ASSEMBLY TO FUEL TANK Install a new gasket to the suction plate. Insert the fuel pump, sender gauge and suction plate assembly into the fuel tank. Install the suction plate with the 8 bolts. Torque: 3.5 N.m (35 kgf.cm, 31 in.-lbf)
- CONNECT FUEL MAIN TUBE AND RETURN TUBE TO SUCTION PLATE (See PRECAUTION )
- CONNECT FUEL PUMP & SENDER GAUGE CONNECTOR
- INSTALL FUEL TANK (See FUEL TANK AND LINE )
- CHECK FOR FUEL LEAKS (See PRECAUTION )
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- REMOVE AIR CLEANER HOSE
- REMOVE INTAKE AIR CONNECTOR (See CYLINDER HEAD (5VZ-FE) )
- DISCONNECT FUEL RETURN HOSE FROM FUEL PRESSURE REGULATOR CAUTION: Put a shop rag under the pressure regulator.
- REMOVE FUEL PRESSURE REGULATOR Remove the bolt holding the engine wire to the LH cylinder head cover. Disconnect the protector from the bracket on the RH cylinder head cover, and lift up the engine wire. Remove the 2 bolts, and pull out the pressure regulator. Remove the O-ring from the pressure regulator.
- REINSTALL FUEL PRESSURE REGULATOR Apply a light coat of gasoline to a new O-ring, and install it to the pressure regulator. Attach the pressure regulator to the LH delivery pipe. Check that the pressure regulator rotates smoothly. NOTE: If it does not rotate smoothly, the O-ring may be pinched, so remove the pressure regulator and repeat steps (a) to (c) above. Install the pressure regulator with the 2 bolts. Torque: 8 N.m (80 kgf.cm, 71 in.-lbf) Install the engine wire with the bolt.
- RECONNECT FUEL RETURN HOSE TO FUEL PRESSURE REGULATOR NOTE: Be sure to insert the hose up to the stopper and clip it.
- REINSTALL INTAKE AIR CONNECTOR (See ENGINE UNIT (2WD) (5VZ-FE) )
- REINSTALL AIR CLEANER HOSE
- CHECK FOR FUEL LEAKS
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- REMOVE AIR CLEANER HOSE
- REMOVE INTAKE AIR CONNECTOR (See ENGINE UNIT (2WD) (5VZ-FE) )
- REMOVE FUEL PRESSURE REGULATOR (See REPLACEMENT )
- DISCONNECT FUEL INLET PIPE CAUTION: Catch leaking fuel in a container.
- REMOVE FUEL PIPE
- DISCONNECT INJECTOR CONNECTORS
- REMOVE DELIVERY PIPES AND INJECTORS NOTE: Be careful not to drop the injectors when removing the delivery pipes. Remove the 4 bolts and delivery pipes together with the 6 injectors Remove the 4 spacers from the intake manifold. Pull out the 6 injectors from the delivery pipes. Remove the 2 O-rings and 2 grommets from each injector.
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- INSPECT INJECTOR RESISTANCE Using an ohmmeter, measure the resistance between the terminals. Resistance: 13.4 - 14.2 ohm at 20°C (68°F) If the resistance is not as specified, replace the injector.
- INSPECT INJECTOR INJECTION CAUTION: Keep injector clear of sparks during the test. Disconnect the fuel inlet pipe from the fuel tube. Connect SST (attachment and hose) to the fuel tube. SST 09268-41047 (09268-52011) Connect the fuel return hose, SST (union) and SST (hose) to the fuel pressure regulator. SST 09268-41047 (09268-41091) Install the O-ring to the injector. Connect SST (union and hose) to the injector, and hold the injector and union with SST (clamp). SST 09268-41047 Put the injector into the graduated cylinder. HINT: Install a suitable vinyl tube onto the injector to prevent gasoline from splashing out. Connect a hand-held tester to the DLC3. Connect the battery negative (-) cable to the battery. 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. Connect SST (wire) to the injector and battery for 15 seconds, and measure the injection volume with a graduated cylinder. Test each injector 2 or 3 times. SST 09842-30070 Volume: 56 - 69 cm 3 (3.4 - 4.3 cu in.) per 15 sec. Difference between each injector: 13 cm 3 (0.8 cu in.) or less If the injection volume is not as specified, replace the injector.
- INSPECT LEAKAGE In the condition above, disconnect the test probes of SST (wire) from the battery and check the fuel leakage from the injector. SST 09842-30070 Fuel drop: 1 drop or less per 12 min. Turn the ignition switch OFF. Disconnect the negative (-) terminal cable from the battery. Remove the SST. SST 09268-41047 Disconnect the hand-held tester from the DLC3.
INSTALLATION
Note. Be careful not to drop the injectors when installing the delivery pipes. Pay attention to put any hung load on the injector to and from the side direction.
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- TEMPORARILY INSTALL INJECTORS AND DELIVERY PIPES Install a new insulator to each injector. Apply a light coat of spindle oil or gasoline to 2 new O-rings and install them to each injector. While turning the injector clockwise and counterclockwise, push it to the delivery pipes. Install the 6 injectors. Position the injector connector outward. Place the 4 spacers in position on the intake manifold. Place the delivery pipes with the 6 injectors in position on the intake manifold. Temporarily install the 4 bolts holding the delivery pipes to the intake manifold. Check that the injectors rotate smoothly. HINT: If injectors do not rotate smoothly, the probable cause is incorrect installation of O-rings. Replace the O-rings. Position the injector connector outward.
- CONNECT INJECTOR CONNECTORS
- INSTALL FUEL PIPE AND TIGHTENING DELIVERY PIPE HOLDING BOLTS Install the fuel pipe with 4 new gaskets and the 2 union bolts. Torque: 34.3 N.m (350 kgf.cm, 25 ft.lbf) Tighten the 4 bolts holding the delivery pipes to the intake manifold. Torque: 13 N.m (130 kgf.cm, 10 ft.lbf)
- CONNECT FUEL INLET PIPE Temporarily install the union and 2 new gaskets, and connect the fuel pipe. Install the clamp bolt. Torque: 8 N.m (80 kgf.cm, 71 in.-lbf) Tighten the union bolt. Torque: 34.3 N.m (350 kgf.cm, 25 ft.lbf)
- INSTALL FUEL PRESSURE REGULATOR (See REPLACEMENT )
- VISUALLY INSPECT AIR ASSIST LINES AND CONNECTIONS Look for loose connections, sharp bends or damage.
- INSTALL INTAKE AIR CONNECTOR (See ENGINE UNIT (2WD) (5VZ-FE) )
- INSTALL AIR CLEANER HOSE
- CHECK FOR FUEL LEAKS