Caution / Notice / Hint
WARNING: This page is about a different car, the 2025 Lexus NX 350h, 2024 Lexus NX 350h, 2023 Lexus NX 350h, and 2022 Lexus NX 350h. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
This procedure includes the installation of small-head bolts. Refer to Small-Head Bolts of Basic Repair Hint to identify the small-head bolts.
Refer to PRECAUTION [11/2021 - ]
COMPONENTS (INSTALLATION)
Fig 1: Fuel Injector (For Direct Injection) Installation Components With Torque Specifications (1 Of 2)
| Callout - Procedure | Part Name Code | ||||
|---|---|---|---|---|---|
| 1 | FUEL INJECTOR SEAL | 23255A | See step 1 | - | - |
| 2 | INJECTOR VIBRATION INSULATOR | 23291A | See step 2 | - | - |
| 3 | C-RING | - | See step 3 | - | - |
| 4 | NO. 1 FUEL INJECTOR BACK-UP RING | 23256 | See step 4 | - | - |
| 5 | NO. 3 FUEL INJECTOR BACK-UP RING | 23258 | See step 5 | - | - |
| 6 | NOZZLE HOLDER CLAMP | 23695A | - | - | - |
| 7 | DIRECT FUEL INJECTOR ASSEMBLY | 23250E | See step 7 | - | - |
| 8 | FUEL DELIVERY PIPE | 23814B | See step 8 | - | - |
| 9 | WIRE HARNESS | - | - | - | - |
| 10 | FUEL PUMP LIFTER ASSEMBLY | 23470 | See step 10 | - | - |
| 11 | FUEL PUMP SPACER GASKET | 23224D | - | - | - |
| 12 | TEMPORARILY INSTALL FUEL (ENGINE ROOM SIDE) PUMP ASSEMBLY | 23100X | See step 12 | - | - |
| 13 | TEMPORARILY INSTALL NO. 1 FUEL PIPE SUB-ASSEMBLY | 23801P | See step 13 | - | - |
| 14 | INSTALL FUEL (ENGINE ROOM SIDE) PUMP ASSEMBLY | 23100X | See step 14 | - | - |
| 15 | INSTALL NO. 1 FUEL PIPE SUB-ASSEMBLY | 23801P | See step 15 | - | - |
| 16 | FUEL TUBE SUB-ASSEMBLY | 23910A | See step 16 | - | - |
| 17 | FUEL PIPE CLAMP | 23841K | - | - | - |
| 18 | INTAKE MANIFOLD | 17111 | - | - | - |
| *1 | FUEL PUMP FLANGE | *2 | O-RING |
| Tightening torque for "Major areas involving basic vehicle performance such as moving/turning/stopping": N.m (kgf/cm, ft.lbf) | N.m (kgf/cm, ft.lbf): Specified torque | ||
| * | For use with a union nut wrench | • | Non-reusable part |
| Callout - Procedure | Part Name Code | ||||
|---|---|---|---|---|---|
| 19 | CONNECT CABLE TO NEGATIVE AUXILIARY BATTERY TERMINAL | - | - | - | - |
| 20 | BATTERY SERVICE COVER PLATE | 58491E | - | - | - |
| 21 | INSPECT FOR FUEL LEAK | - | - | - | See step 21 |
| 22 | INSPECT FOR ENGINE OIL LEAK | - | - | - | See step 22 |
| 23 | PERFORM INITIALIZATION | - | - | - | See step 23 |
| 24 | INITIALIZATION AFTER RECONNECTING AUXILIARY BATTERY TERMINAL | - | - | - | See step 24 |