- Replacement of fuel pump assembly
- Replacement of throttle body with motor assembly
- Cleaning the deposits from the throttle body with motor assembly
| Last Modified: 05-13-2024 | 6.11:8.1.0 | Doc ID: RM1000000028IPD |
| Model Year Start: 2023 | Model: GR Corolla | Prod Date Range: [11/2022 - ] |
| Title: G16E-GTS (FUEL): FUEL PUMP (for High Pressure): REMOVAL; 2023 - 2025 MY GR Corolla [11/2022 - ] | ||
REMOVAL
CAUTION / NOTICE / HINT
The necessary procedures (adjustment, calibration, initialization or registration) that must be performed after parts are removed and installed, or replaced during fuel pump assembly removal/installation are shown below.
Necessary Procedures After Parts Removed/Installed/Replaced
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Replaced Part or Performed Procedure |
Necessary Procedure |
Effect/Inoperative Function when Necessary Procedure not Performed |
Link |
|---|---|---|---|
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Inspection after repair |
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CAUTION:
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Never perform work on fuel system components near any possible ignition sources.
- Vaporized fuel could ignite, resulting in a serious accident.
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Do not perform work on fuel system components without first disconnecting the cable from the negative (-) battery terminal.
- Sparks could cause vaporized fuel to ignite, resulting in a serious accident.
NOTICE:
This procedure includes the removal of small-head bolts. Refer to Small-Head Bolts of Basic Repair Hint to identify the small-head bolts.
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![2019 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2018 - ]; INTRODUCTION: REPAIR INSTRUCTION: PRECAUTION](/t3Portal/stylegraphics/info.gif)
HINT:
When the cable is disconnected / reconnected to the battery terminal, systems temporarily stop operating. However, each system has a function that completes learning the first time the system is used.
Learning completes when vehicle is driven
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Effect/Inoperative Function when Necessary Procedure not Performed |
Necessary Procedure |
Link |
|---|---|---|
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Front Camera System |
Drive the vehicle straight ahead at 35 km/h (22 mph) or more for 5 seconds or more. |
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Learning completes when vehicle is operated normally
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Effect/Inoperative Function when Necessary Procedure not Performed |
Necessary Procedure |
Link |
|---|---|---|
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Power Door Lock Control System
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Perform door unlock operation with door control switch or electrical key transmitter sub-assembly switch. |
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PROCEDURE
1. PRECAUTION
NOTICE:
After turning the engine switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal.
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2. DISCHARGE FUEL SYSTEM PRESSURE
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3. REMOVE DECK BOARD ASSEMBLY
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4. REMOVE SPARE WHEEL CUSHION
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5. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL
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6. DRAIN ENGINE COOLANT
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7. REMOVE WINDSHIELD WIPER MOTOR AND LINK ASSEMBLY
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8. REMOVE NO. 1 HEATER AIR DUCT SPLASH SHIELD SEAL
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9. REMOVE OUTER COWL TOP PANEL SUB-ASSEMBLY
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10. REMOVE NO. 1 ENGINE COVER SUB-ASSEMBLY
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11. REMOVE NO. 1 VACUUM SWITCHING VALVE ASSEMBLY
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12. DISCONNECT NO. 1 FUEL TUBE SUB-ASSEMBLY
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(a) Disconnect the No. 1 fuel tube sub-assembly from the No. 2 fuel tube sub-assembly. Click here
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13. REMOVE FUEL PIPE CLAMP
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(a) Remove the fuel pipe clamp from the fuel tube connector. |
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14. REMOVE NO. 2 FUEL TUBE SUB-ASSEMBLY
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(a) Remove the bolt from the cylinder head cover sub-assembly. |
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(b) Remove the No. 2 fuel tube sub-assembly from the fuel delivery pipe and fuel pump assembly.
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15. DISCONNECT NO. 8 WATER BY-PASS HOSE
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(a) Slide the clip and disconnect the No. 8 water by-pass hose. |
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(b) Disengage the clamp.
16. DISCONNECT NO. 1 WATER BY-PASS HOSE
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(a) Slide the clip and disconnect the No. 1 water by-pass hose. |
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17. DISCONNECT ENGINE WIRE
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(a) Disconnect the camshaft position sensor connector. |
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(b) Remove the bolt.
(c) Disengage the clamp and disconnect the engine wire.
18. REMOVE NO. 1 FUEL PIPE SUB-ASSEMBLY
CAUTION:
To prevent serious injury due to fuel spray from the high-pressure fuel lines, always discharge fuel system pressure before removing any fuel system components.
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(a) Using a 17 mm union nut wrench, loosen the 2 union nuts of the No. 1 fuel pipe sub-assembly. |
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(b) Remove the bolt. |
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(c) Using an 8 mm socket wrench, loosen the 2 bolts of the fuel pump assembly. |
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(d) Remove the No. 1 fuel pipe sub-assembly from the fuel delivery pipe sub-assembly and fuel pump assembly.
19. DISCONNECT NO. 1 VACUUM TRANSMITTING HOSE
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(a) Disengage the 2 clamps and disconnect the No. 1 vacuum transmitting hose from the intake air resonator. |
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20. SEPARATE INTAKE AIR RESONATOR
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(a) Remove the bolt and separate the intake air resonator from the fuel pump flange. |
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21. REMOVE FUEL PUMP ASSEMBLY
NOTICE:
When replacing the fuel pump assembly, it is necessary to replace the No. 1 fuel pipe sub-assembly with a new one.
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(a) Disconnect the fuei pumo assembly connector. |
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(b) Using an 8 mm socket wrench, remove the 2 bolts, fuel pump assembly and fuel pump flange from the cylinder head cover sub-assembly.
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(c) Remove the O-ring from the fuel pump assembly. |
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(d) Remove the fuel pump lifter assembly from the fuel pump lifter guide. |
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(e) Remove the fuel pump spacer gasket from the cylinder head cover sub-assembly. |
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