Variable Induction System: Service and Repair

- Safety precautions. Technician Safety Information
- Rules of cleanliness. Vehicle Damage Warnings


NOTE: Before starting repairs, check Diagnostic Trouble Code (DTC) memory and output Diagnostic Test Mode (DTM). Testing and Inspection


1 - Intake manifold
- With intake manifold change-over valve -N156-
2 - 25 Nm (18ft lb)
3 - 20 Nm (15ft lb)
4 - 15 Nm (11ft lb)
5 - Throttle body
6 - Gasket
- Always replace
7 - Throttle Position (TP) sensor -G69-
- With integrated Closed Throttle Position (CTP) switch -F60-
8 - Flange
9 - Idle Air Control (IAC) valve -N71-
10 - 10 Nm (7 ft lb)
11 - 5 Nm (44 in. lb)
12 - 15 Nm (11 ft lb)
13 - Angled intake air connector housing
14 - O-ring
15 - 25 Nm (18 ft lb)
16 - Vacuum unit
- Nut: 15Nm (11 ft lb)
17 - Vacuum hose
18 - Connecting rod
19 - Intake manifold change-over valve -N156-
20 - 10 Nm (7 ft lb)
21 - Air valve for fuel injectors -N212-