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Caution / Notice / Hint

WARNING: This page is about a different car, the 2025 Lexus NX 250, 2024 Lexus NX 250, 2023 Lexus NX 250, and 2022 Lexus NX 250. 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: Engine Unit Installation Components With Torque Specifications [03/2022 - ] (1 Of 6)
GTY1079826Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Callout - Procedure Part Name Code
1 STUD BOLT - See step  1 - -
2 WIRE HARNESS CLAMP BRACKET - See step  2 - -
3 NO. 2 VACUUM SWITCHING VALVE BRACKET 25861A See step  3 - -
4 PURGE VALVE (PURGE VSV) 25860 - - -
5 NO. 3 EXHAUST MANIFOLD HEAT INSULATOR 17169A - - -
6 ENGINE OIL LEVEL DIPSTICK GUIDE 11452 See step  6 - -
7 IGNITION COIL ASSEMBLY 19500 See step  7 - -
*1 ENGINE OIL LEVEL DIPSTICK - -
N.m (kgf/cm, ft.lbf): Specified torque • Non-reusable part
Fig 2: Engine Unit Installation Components With Torque Specifications [03/2022 - ] (2 Of 6)
GTY1075118Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Callout - Procedure Part Name Code
8 FUEL INJECTOR SEAL 23255A See step  8 - -
9 INJECTOR VIBRATION INSULATOR 23291A See step  9 - -
10 C-RING - See step  10 - -
11 NO. 1 FUEL INJECTOR BACK-UP RING 23256 See step  11 - -
12 NO. 3 FUEL INJECTOR BACK-UP RING 23258 See step  12 - -
13 NOZZLE HOLDER CLAMP 23695A - - -
14 DIRECT FUEL INJECTOR ASSEMBLY 23250E See step  14 - -
15 FUEL DELIVERY PIPE 23814B See step  15 - -
16 PORT FUEL INJECTOR ASSEMBLY 23250F See step  16 - -
17 NO. 5 ENGINE WIRE 82125N - - -
18 INJECTOR VIBRATION INSULATOR 23291 - - -
19 NO. 1 DELIVERY PIPE SPACER 23807V - - -
20 FUEL DELIVERY PIPE SUB-ASSEMBLY 23807 See step  20 - -
Tightening torque for "Major areas involving basic vehicle performance such as moving/turning/stopping": N.m (kgf/cm, ft.lbf) • Non-reusable part
Fig 3: Engine Unit Installation Components With Torque Specifications [03/2022 - ] (3 Of 6)
GTY1075925Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Callout - Procedure Part Name Code
21 NO. 6 ENGINE WIRE 82126A - - -
22 SENSOR WIRE 82219A See step  22 - -
23 NO. 7 WATER BY-PASS HOSE 16295 - - -
24 FUEL PUMP LIFTER ASSEMBLY 23470 See step  24 - -
25 FUEL PUMP SPACER GASKET 23224D - - -
26 TEMPORARILY INSTALL FUEL (ENGINE ROOM SIDE) PUMP ASSEMBLY 23100X See step  26 - -
27 TEMPORARILY INSTALL NO. 1 FUEL PIPE SUB-ASSEMBLY 23801P See step  27 - -
28 INSTALL FUEL (ENGINE ROOM SIDE) PUMP ASSEMBLY 23100X See step  28 - -
29 INSTALL NO. 1 FUEL PIPE SUB-ASSEMBLY 23801P See step  29 - -
30 FUEL TUBE SUB-ASSEMBLY 23910A See step  30 - -
*1 FUEL PIPE CLAMP *2 FUEL PUMP FLANGE
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
Fig 4: Engine Unit Installation Components With Torque Specifications [03/2022 - ] (4 Of 6)
GTY1075912Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Callout - Procedure Part Name Code
31 NO. 1 INTAKE MANIFOLD TO HEAD GASKET 17177 - - -
32 INTAKE MANIFOLD 17111 See step  32 - -
33 NO. 2 WATER BY-PASS PIPE 16278 See step  33 - -
34 NO. 3 WATER BY-PASS PIPE 16279 See step  34 - -
35 SET EGR VALVE ASSEMBLY 25620 See step  35 - -
36 INSTALL NO. 4 WATER BY-PASS HOSE 16281 - - -
37 NO. 1 EGR COOLER GASKET 25685 See step  37 - -
38 EGR VALVE GASKET 25627 See step  38 - -
39 EGR COOLER ASSEMBLY 25680 See step  39 - -
40 CONNECT NO. 4 WATER BY-PASS HOSE 16281 - - -
41 NO. 3 WATER BY-PASS HOSE 16267 - - -
42 INSTALL EGR VALVE ASSEMBLY 25620 See step  42 - -
43 EGR INLET GASKET 25628 - - -
44 EGR VALVE ADAPTER GASKET 25629 - - -
45 NO. 1 EGR PIPE SUB-ASSEMBLY 25601 See step  45 - -
46 THROTTLE BODY GASKET 22271 See step  46 - -
47 NO. 5 WATER BY-PASS HOSE 16282 See step  49 - -
48 THROTTLE BODY WITH MOTOR ASSEMBLY 22030 See step  48 - -
49 NO. 6 WATER BY-PASS HOSE 16283 See step  47 - -
*A w/ Stud Bolt *B w/o Stud Bolt
*C for type A *D for type B
N.m (kgf/cm, ft.lbf): Specified torque • Non-reusable part
Fig 5: Engine Unit Installation Components With Torque Specifications [03/2022 - ] (5 Of 6)
GTY1132641Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Callout - Procedure Part Name Code
50 EXHAUST MANIFOLD TO HEAD GASKET 17173 - - -
51 EXHAUST MANIFOLD (TWC: Front Catalyst) 17141 See step  51 - -
52 MANIFOLD STAY 17118 See step  52 - -
53 NO. 1 EXHAUST MANIFOLD HEAT INSULATOR 17167 - - -
54 NO. 2 WATER HOSE CLAMP BRACKET 16575B - - -
55 FLOW SHUTTING VALVE (WATER BY-PASS HOSE ASSEMBLY) 16260 - - -
56 NO. 2 WATER BY-PASS PIPE SUB-ASSEMBLY 16207 See step  56 - -
*a Type A: x 3
Type B: x 5		 - -
N.m (kgf/cm, ft.lbf): Specified torque • Non-reusable part
Fig 6: Engine Unit Installation Components With Torque Specifications [03/2022 - ] (6 Of 6)
GTY1253905Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Callout - Procedure Part Name Code
57 NO. 2 TIMING CHAIN COVER INSULATOR 11336A - - -
58 V-RIBBED BELT TENSIONER ASSEMBLY 16620D See step  58 - -
59 COMPRESSOR ASSEMBLY WITH PULLEY 88310 See step  59 - -
60 GENERATOR ASSEMBLY 27060 - - -
61 V-RIBBED BELT 16361A See step  61 - -
62 NO. 2 ENGINE COVER 12602C - - -
63 DRIVE SHAFT BEARING BRACKET 43457 - - -
*A for 2WD *B for AWD
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
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