Sfi System: Other Lexus LX J100 рестайлинг

COMPONENTS

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1. Check the fuel lines from cracks or leakage, and all connections for deformation.
2. Check the fuel tank vapor vent system hoses and all connections for looseness, sharp bends or damage.
3. Check the fuel tank for deformation, cracks, fuel leakage or tank band looseness.
4. Check the filler neck for damage or fuel leakage.
5. Hose and pipe connections are (Scheme 58) If a problem is found, repair or replace the parts as necessary.

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1. DISCONNECT MAF METER CONNECTOR
2. REMOVE MAF METER Remove the 2 screws and MAF meter.
3. INSPECT MAF METER Using an ohmmeter, measure the resistance between terminals THA and E2. If the resistance is not as specified, replace the MAF meter. Inspect for operation. Connect the MAF meter connector. Connect the negative (-) terminal cable to the battery. Turn the ignition switch ON. Using a voltmeter, connect the positive (+) tester probe to terminal VG and negative (-) tester probe to terminal E2G. Blow air into the MAF meter, and check that the voltage fluctuates. If operation is not as specified, replace the MAF meter. Turn the ignition switch OFF. Disconnect the negative (-) terminal cable from the battery. Disconnect the MAF meter connector.
4. REINSTALL MAF METER Install the MAF meter with the 2 screws. Torque: 1.68 N.m (17 kgf.cm, 15 in.lbf)
5. RECONNECT MAF METER CONNECTOR

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1. REMOVE V-BANK COVER
2. INSPECT SYSTEM OPERATION Inspect the throttle control motor for operating sound. Turn the ignition switch ON. When turning the accelerator pedal position sensor lever, check the running sound of the motor. Also, check that there is no friction sound. If operation is not as specified, check the throttle control motor (See step 3 ), wiring and ECM. Inspect the accelerator pedal position sensor. Connect the LEXUS hand-held tester or OBD II scan tool to the DLC3. Check that the MIL does not come on. When turning the accelerator pedal position sensor lever to the full-open position, check that the throttle valve opening percentage (THROTTLE POS) of the CURRENT DATA shows the standard value. Standard throttle valve opening percentage: 60% or more If operation is not as specified, check that the accelerator pedal position sensor (See «DTC P2120 THROTTLE/PEDAL POSITION SENSOR/SWITCH "D" CIRCUIT, DTC: P2122 THROTTLE/PEDAL POSITION SENSOR/SWITCH "D" CIRCUIT LOW INPUT, DTC: P2123 THROTTLE/PEDAL POSITION SENSOR/SWITCH "D" CIRCUIT HIGH INPUT, DTC: P2125 THROTTLE/PEDAL POSITION SENSOR/SWITCH "E" CIRCUIT, DTC: P2127 THROTTLE/PEDAL POSITION SENSOR/SWITCH "E" CIRCUIT LOW INPUT, DTC: P2128 THROTTLE/PEDAL POSITION SENSOR/SWITCH "E" CIRCUIT HIGH INPUT, DTC: P2138 THROTTLE/PEDAL POSITION SENSOR/SWITCH "D"/"E" VOLTAGE CORRELATION»(ref-209750-S30332138612005121100000) ), wiring and ECM. If you have no LEXUS hand-held tester or OBD II scan tool, measure the voltage between terminal VPA and E2 of the ECM connector. Inspect the air assist system. Start the engine and check that the MIL does not come on. Allow the engine to warm up to normal operating temperature. Turn the A/C compressor ON to OFF, and check the idle speed. Idle speed (Transmission in neutral): 700 +/- 50 rpm NOTE: Perform inspection under the condition with no electrical load. After checking the above ( b ) to ( d ), perform the running test and check that there is no incongruity.
3. INSPECT THROTTLE CONTROL MOTOR Disconnect the throttle connector. Using an ohmmeter, measure the motor resistance between terminal (M+) and (M-). Motor resistance: 0.3 - 100 ohm at 20°C (68°F) If the resistance is not as specified, replace the throttle body. Reconnect the throttle body connector.
4. INSPECT THROTTLE POSITION SENSOR (See «DTC P0120, P0122, P0123, P0220, P0222, P0223, P2135: THROTTLE/PEDAL POSITION SENSOR/SWITCH "A" CIRCUIT, THROTTLE/PEDAL POSITION SENSOR/SWITCH "A" CIRCUIT LOW INPUT, THROTTLE/PEDAL POSITION SENSOR/SWITCH "A" CIRCUIT HIGH INPUT, THROTTLE/PEDAL POSITION SENSOR/SWITCH "B" CIRCUIT, THROTTLE/PEDAL POSITION SENSOR/SWITCH "B" CIRCUIT LOW INPUT, THROTTLE/PEDAL POSITION SENSOR/SWITCH "B" CIRCUIT HIGH INPUT, THROTTLE/PEDAL POSITION SENSOR/SWITCH "A"/"B" VOLTAGE CORRECTION»(ref-209750-S07882189462005121100000) ) If necessary, replace the throttle body. NOTE: Be careful not to give a shock to the throttle body. Be careful not to disassemble the throttle body.
5. REINSTALL V-BANK COVER

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1. REMOVE V-BANK COVER
2. DRAIN ENGINE COOLANT
3. REMOVE INTAKE AIR CONNECTOR
4. REMOVE THROTTLE BODY Disconnect the throttle control connector. Disconnect the PCV hose and the water bypass hose from the throttle body. Remove the 2 bolts and 2 nuts, and disconnect the throttle body from the intake manifold. Disconnect the water bypass hose from the manifold thermostat on the throttle body, and remove the throttle body. Remove the gasket.

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1. INSTALL THROTTLE BODY Connect the water bypass hose to the manifold thermostat on the throttle body. Install a new gasket and the throttle body with the 2 bolts and the 2 nuts. Torque: 18 N.m (185 kgf.cm, 13 ft.lbf) Connect the water bypass hose and the PCV hose to the throttle body. Connect the throttle control connector.
2. INSTALL INTAKE AIR CONNECTOR
3. FILL WITH ENGINE COOLANT (See «REPLACEMENT»(ref-209799-S34252525562005121100000) )
4. START ENGINE AND CHECK FOR ENGINE COOLANT LEAKS
5. INSTALL V-BANK COVER

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1. REMOVE RELAY BOX COVER
2. REMOVE EFI MAIN RELAY (Marking: EFI)
3. INSPECT EFI MAIN RELAY Inspect the relay continuity. Using an ohmmeter, check that there is a continuity between terminals 1 and 3. If there is no continuity, replace the relay. Check that there is no continuity between terminals 2 and 4. If there is a continuity, replace the relay. Inspect the relay operation. Apply battery positive voltage across terminal 1 and 3. Using an ohmmeter, check that there is a continuity between terminal 2 and 4. If there is no continuity, replace the relay.
4. REINSTALL EFI MAIN RELAY
5. REINSTALL RELAY BOX COVER

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1. REMOVE RELAY BOX COVER
2. REMOVE CIRCUIT OPENING RELAY (Marking: C/OPN)
3. INSPECT CIRCUIT OPENING RELAY CONTINUITY Using an ohmmeter, check that there is a continuity between terminal 1 and 2. If there is no continuity, replace the relay. Check that there is no continuity between terminals 3 and 5. If there is a continuity, replace the relay.
4. INSPECT CIRCUIT OPENING RELAY OPERATION Apply the battery positive voltage across terminal 1 and 2. Using an ohmmeter, check that there is a continuity between terminal 3 and 5. If there is no continuity, replace the relay.
5. REINSTALL CIRCUIT OPENING RELAY
6. REINSTALL RELAY BOX COVER

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1. REMOVE RELAY BOX COVER
2. REMOVE FUEL PUMP RELAY (Marking: F/PUMP)
3. INSPECT FUEL PUMP RELAY CONTINUITY Using an ohmmeter, check that there is a continuity between terminals 1 and 2. If there is no continuity, replace the relay. Check that there is no continuity between terminals 3 and 5. If there is a continuity, replace the relay.
4. INSPECT FUEL PUMP RELAY OPERATION Apply the battery positive voltage across terminal 1 and 2. Using an ohmmeter, check that there is a continuity between terminal 3 and 5. If there is no continuity, replace the relay.
5. REINSTALL FUEL PUMP RELAY
6. REINSTALL RELAY BOX COVER

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1. REMOVE FUEL PUMP RESISTOR
2. INSPECT FUEL PUMP RESISTOR Using an ohmmeter, measure the resistance between the terminals. Resistance: 0.70 - 0.76 ohm at 20°C (68°F) If the resistance is not as specified, replace the resistor.
3. REINSTALL FUEL PUMP RESISTOR Torque: 12 N.m (122 kgf.cm, 8.8 ft.lbf)

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1. REMOVE V-BANK COVER
2. REMOVE VSV
3. INSPECT VSV Inspect VSV for open circuit. Using an ohmmeter, check that there is a continuity between the terminals. Resistance: 30 - 34 ohm at 20°C (68°F) If there is no continuity, replace the VSV. Inspect VSV for ground. Using an ohmmeter, check that there is no continuity between each terminal and the body. If there is a continuity, replace VSV. Inspect the VSV operation. Check that air does not flow from the ports. Apply the battery positive voltage across the terminals. Check that air flows from the ports. If operation is not as specified, replace VSV.
4. REINSTALL VSV
5. REINSTALL V-BANK COVER

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1. REMOVE VSV
2. INSPECT VSV Inspect the VSV for open circuit. Using an ohmmeter, check that there is continuity between the terminals. Resistance: 37 - 44 ohm at 20°C (68°F) If there is no continuity, replace the VSV. Inspect the VSV for ground. Using an ohmmeter, check that there is no continuity between each terminal and the body. If there is continuity, replace the VSV. Inspect the VSV operation. Check that air flows from ports E to F. Apply battery positive voltage across the terminals. Check that air flows from ports E to F. If operation is not as specified, replace the VSV.
3. REINSTALL VSV

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1. REMOVE VSV
2. INSPECT VSV FOR OPEN CIRCUIT Using an ohmmeter, check that there is a continuity between the terminals. Resistance: 24 - 30 ohm at 20°C (68°F) If there is no continuity, replace VSV.
3. INSPECT VSV FOR GROUND Using an ohmmeter, check that there is no continuity between each terminal and the body. If there is a continuity, replace VSV.
4. INSPECT VSV OPERATION Check that air flows from the ports A to B. Apply the battery positive voltage across the terminals. Check that air does not flow from the ports A to B. If operation is not as specified, replace VSV.
5. REINSTALL VSV

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1. DRAIN ENGINE COOLANT
2. REMOVE V-BANK COVER
3. REMOVE INTAKE AIR CONNECTOR
4. DISCONNECT THROTTLE BODY FROM INTAKE MANIFOLDS (See «REMOVAL»(ref-209797-S08975182712005121100000) )
5. REMOVE ECT SENSOR Disconnect the ECT sensor connector. Remove the ECT sensor and the gasket.
6. INSPECT ECT SENSOR Using an ohmmeter, measure the resistance between the terminals. Resistance: (Scheme 100)If the resistance is not as specified, replace the ECT sensor.
7. REINSTALL ECT SENSOR Install a new gasket and the ECT sensor. Torque: 19.6 N.m (200 kgf.cm, 14 ft.lbf) Connect the ECT sensor connector.
8. REINSTALL THROTTLE BODY TO INTAKE MANIFOLDS Install a new gasket and the throttle body with the 2 bolts and 2 nuts. Torque: 18 N.m (185 kgf.cm, 13 ft.lbf)
9. REINSTALL INTAKE AIR CONNECTOR
10. REFILL WITH ENGINE COOLANT (See «REPLACEMENT»(ref-209799-S34252525562005121100000) )
11. REINSTALL V-BANK COVER

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1. INSPECT POWER SOURCE VOLTAGE OF VAPOR PRESSURE SENSOR Disconnect the vapor pressure sensor connector. Turn the ignition switch ON. Using a voltmeter, measure the voltage between connector terminal 1 and 3 of the wiring harness side. Voltage: 4.5 - 5.5 V Turn the ignition switch OFF. Reconnect the vapor pressure sensor connector.
2. INSPECT POWER OUTPUT OF VAPOR PRESSURE SENSOR Turn the ignition switch ON. Remove the fuel tank cap. Connect a voltmeter to terminal 2 and 3, and measure the output voltage. Voltage: 3.0 - 3.6 V Reinstall the fuel tank cap. Turn the ignition switch OFF.

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1. REMOVE V-BANK COVER
2. REMOVE INTAKE AIR CONNECTOR
3. REMOVE THROTTLE BODY FROM INTAKE MANIFOLDS (See «REMOVAL»(ref-209797-S08975182712005121100000) )
4. REMOVE UPPER AND LOWER INTAKE MANIFOLDS ASSEMBLY (See «REMOVAL»(ref-209781-S19449274192005121100000) )
5. INSPECT KNOCK SENSOR 1, 2 Disconnect the knock sensor connectors. Using an ohmmeter, check that there is no continuity between the terminal and body. If there is a continuity, replace the sensor with SST. SST 09816-30010 Torque: 45 N.m (450 kgf.cm, 33 ft.lbf) Reconnect the knock sensor connectors.
6. REINSTALL UPPER AND LOWER INTAKE MANIFOLDS ASSEMBLY (See «INSTALLATION»(ref-209781-S41437323792005121100000) )
7. REINSTALL THROTTLE BODY TO INTAKE MANIFOLDS (See «INSPECTION»(ref-209797-S08694355422005121100000) )
8. REINSTALL INTAKE AIR CONNECTOR
9. REINSTALL V-BANK COVER

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1. INSPECT HEATER RESISTANCE OF HEATED OXYGEN SENSORS Disconnect the oxygen sensor connector. Using an ohmmeter, measure the resistance between terminal +B and HT. Resistance: 11 - 16 ohm at 20°C (68°F) If the resistance is not as specified, replace the sensor. Torque: 44 N.m (450 kgf.cm, 32 ft.lbf) for sensor 1 20 N.m (200 kgf.cm, 14 ft.lbf) for sensor 2 Reconnect the oxygen sensor connector.
2. INSPECT OPERATION OF HEATED OXYGEN SENSORS (See «DTC P0130, P0150, P2195, P2196, P2167, P2198: OXYGEN SENSOR CIRCUIT»(ref-209750-S38741246702005121100000) and «DTC P0136: OXYGEN SENSOR CIRCUIT MALFUNCTION (BANK 1 SENSOR 2) DTC P0156: OXYGEN SENSOR CIRCUIT MALFUNCTION (BANK 2 SENSOR 2)»(ref-209750-S30436455212005121100000) )

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