Toyota Yaris: Fuel Injector (for Direct Injection) / 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 injector 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 |
|---|---|---|---|
| Replacement of fuel injector assembly | 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 INTAKE MANIFOLD
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5. REMOVE NO. 1 FUEL PIPE SUB-ASSEMBLY
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6. SEPARATE NO. 2 WATER BY-PASS PIPE
| (a) Remove the 2 bolts to separate the No. 2 water by-pass pipe. |
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7. REMOVE FUEL DELIVERY PIPE
NOTICE:
When replacing the fuel delivery pipe, it is necessary to replace the No. 1 fuel pipe sub-assembly with a new one.
| (a) Remove the 3 bolts and fuel delivery pipe with the 3 fuel injector assemblies from the cylinder head sub-assembly. NOTICE:
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8. REMOVE NO. 6 ENGINE WIRE
(a) Disengage the 2 clamps.
| (b) Disconnect the 3 fuel injector assembly connectors and remove the No. 6 engine wire from the fuel delivery pipe. NOTICE: Make sure to disconnect the connectors carefully. |
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9. REMOVE DIRECT FUEL INJECTOR ASSEMBLY
| (a) Secure the fuel delivery pipe in a vise between aluminum plates and pull out the 3 fuel injector assemblies. NOTICE:
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(b) Remove the nozzle holder clamp from each fuel injector assembly.
(c) Using needle nose pliers, remove the No. 3 fuel injector back-up ring from each fuel injector assembly.
NOTICE:
Do not damage the area that contacts the O-ring.
(d) Remove the O-ring and No. 1 fuel injector back-up ring from each fuel injector assembly.
(e) Remove the C-ring from each fuel injector assembly.
(f) Remove the injector vibration insulator from each fuel injector assembly.
10. REMOVE FUEL INJECTOR SEAL
| (a) Using the tip of needle nose pliers, pinch and pull the fuel injector seal at several points to stretch it. NOTICE:
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(b) Remove the fuel injector seal from each fuel injector assembly.
Components
COMPONENTS ILLUSTRATION
*1 FUEL INJECTOR ASSEMBLY *2 FUEL DELIVERY PIPE *3 FUEL INJECTOR SEAL *4 C-RING *5 NO. 3 FUEL INJECTOR BACK-UP RING *6 O-RING *7 NO...
Inspection
INSPECTION PROCEDURE 1. INSPECT FUEL INJECTOR ASSEMBLY NOTICE: This inspection is for checking the fuel injector assembly for an open or short. Because the fuel injector assembly of this vehicle is a high-pressure type, fuel injection volume cannot be checked...
Other information:
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Toyota Yaris XP210 (2020-2024) Owner's Manual: Tiedown Hook-Front
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Break-In Period
No special break-in is necessary, but a few precautions in the first 600 miles (1,000 km) may add to the performance, economy, and life of the vehicle.
Do not race the engine. Do not maintain one constant speed, either slow or fast, for a long period of time. Do not drive constantly at full-throttle or high engine rpm for extended periods of time. Avoid unnecessary hard stops. Avoid full-throttle starts.