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.

The necessary procedures (adjustment, calibration, initialization or registration) that must be performed after parts are removed and installed, or replaced during intake manifold 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 throttle body with motor assembly Cleaning the deposits from the throttle body with motor assembly Gas leak from exhaust system is repaired	Perform Inspection After Repair	Poor idle, etc. Engine start function, etc.	Refer to INITIALIZATION [11/2021 - ]

NOTE:

This procedure includes the removal 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 (REMOVAL)

Fig 1: Intake Manifold Removal Components

Callout - Procedure		Part Name Code
1	THROTTLE BODY WITH MOTOR ASSEMBLY	22030	-	-	-
2	E.F.I. VACUUM SENSOR ASSEMBLY (MANIFOLD ABSOLUTE PRESSURE SENSOR)	89421	-	-	-
3	ENGINE WIRE	82121	-	-	-
4	NO. 1 EGR PIPE SUB-ASSEMBLY	25601	See step 4	-	-
5	EGR VALVE ADAPTER GASKET	25629	-	-	-
6	EGR INLET GASKET	25628	-	-	-
7	NO. 5 WATER BY-PASS HOSE	16282	-	-	-
8	NO. 3 WATER BY-PASS PIPE	16279	See step 8	-	-
9	NO. 2 WATER BY-PASS PIPE	16278	See step 9	-	-
10	FUEL VAPOR FEED HOSE ASSEMBLY	23820	-	-	-
11	INTAKE MANIFOLD	17111	See step 11	-	-
12	NO. 1 INTAKE MANIFOLD TO HEAD GASKET	17177	-	-	-
13	NO. 1 ENGINE COVER	12611B	-	-	-
14	VACUUM HOSE	-	-	-	-

*A	w/ Stud Bolt	*B	w/o Stud Bolt
•	Non-reusable part	-	-