Toyota Yaris: Fuel Pump (for High Pressure) / Removal
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| Replaced Part or Performed Procedure | Necessary Procedure | Effect/Inoperative Function when Necessary Procedure not Performed | Link |
|---|---|---|---|
| Fuel pump assembly (for high pressure side) | 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 (-) auxiliary battery terminal.
- Sparks could cause vaporized fuel to ignite, resulting in a serious accident.
NOTICE:
- After the ignition switch is turned off, the radio and display receiver assembly records various types of memory and settings. As a result, after turning the ignition switch off, make sure to wait at least 120 seconds before disconnecting the cable from the negative (-) auxiliary battery terminal.
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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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HINT:
When the cable is disconnected/reconnected to the auxiliary battery terminal, systems temporarily stop operating. However, each system has a function that completes learning the first time the system is used.
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Learning completes when vehicle is driven
Effect/Inoperative Function When Necessary Procedures are not Performed
Necessary Procedures
Link
Lane tracing assist system
Drive the vehicle straight ahead at 35 km/h (22 mph) or more for 5 second or more.
Pre-collision system
Stop and start system
Drive the vehicle until stop and start control is permitted (approximately 5 to 60 minutes)
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Learning completes when vehicle is operated normally
Effect/Inoperative Function When Necessary Procedures are not Performed
Necessary Procedures
Link
Power door lock control system
- Back door opener
Perform door unlock operation with door control switch or electrical key transmitter sub-assembly switch.
Air conditioning system
After the ignition switch is turned to ON, the servo motor standard position is recognized.
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PROCEDURE
1. DISCHARGE FUEL SYSTEM PRESSURE
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2. PRECAUTION
NOTICE:
After turning the ignition switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal.
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3. DISCONNECT CABLE FROM NEGATIVE AUXILIARY BATTERY TERMINAL
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4. REMOVE WINDSHIELD WIPER MOTOR AND LINK ASSEMBLY
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5. REMOVE FRONT NO. 1 VENTILATOR SEAL
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6. REMOVE WATER GUARD PLATE RH
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7. REMOVE OUTER COWL TOP PANEL SUB-ASSEMBLY
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8. REMOVE NO. 1 ENGINE COVER SUB-ASSEMBLY
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9. REMOVE NO. 1 VACUUM SWITCHING VALVE ASSEMBLY
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10. DISCONNECT NO. 1 FUEL TUBE SUB-ASSEMBLY
| (a) Disconnect the No. 1 fuel tube sub-assembly from the No. 2 fuel tube sub-assembly. Click here
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11. REMOVE FUEL PIPE CLAMP
| (a) Remove the fuel pipe clamp from the No. 2 fuel tube sub-assembly. |
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12. REMOVE NO. 2 FUEL TUBE SUB-ASSEMBLY
| (a) Remove the bolt. |
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(b) Remove the No. 2 fuel tube sub-assembly from the fuel delivery pipe sub-assembly and fuel pump assembly.
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13. DISCONNECT NO. 8 WATER BY-PASS HOSE
| (a) Slide the clip and disconnect the No. 8 water by-pass hose. |
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14. DISCONNECT NO. 1 WATER BY-PASS HOSE
| (a) Slide the clip and disconnect the No. 1 water by-pass hose. |
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15. REMOVE NO. 1 FUEL PIPE SUB-ASSEMBLY
| (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 and fuel pump assembly.
16. DISCONNECT ENGINE WIRE
| (a) Disconnect the 2 connectors. |
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(b) Remove the bolt.
(c) Disengage the clamp and disconnect the engine wire.
17. DISCONNECT NO. 1 VACUUM TRANSMITTING HOSE
| (a) Disengage the 2 clamps and disconnect the No. 1 vacuum transmitting hose. |
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18. SEPARATE INTAKE AIR RESONATOR
| (a) Remove the bolt and separate the intake air resonator from the fuel pump flange. |
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19. 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.
| (a) Remove the 2 bolts, fuel pump assembly and fuel pump flange from the cylinder head cover sub-assembly. |
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| (b) Remove the O-ring from the fuel pump assembly. |
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| (c) Remove the fuel pump lifter assembly from the fuel pump lifter guide. |
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| (d) Remove the fuel pump spacer gasket from the cylinder head cover sub-assembly. |
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On-vehicle Inspection
ON-VEHICLE INSPECTION PROCEDURE 1. FUEL PUMP ASSEMBLY OPERATION (a) Check fuel pressure. (1) Connect the GTS to the DLC3. (2) Turn the ignition switch to ON...
Inspection
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Other information:
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Turning the Engine Off
Stop the vehicle completely. Manual transaxle: Shift into neutral and set the parking brake.Automatic transaxle: Shift the selector lever to the P position and set the parking brake.
Press the push button start to turn off the engine. The ignition position is off.