1D-12 Engine Mechanical: For M16A Engine with VVT
Electric Throttle Body Assembly Removal and
Installation
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Removal
1) Disconnect negative cable at battery.
2) Drain coolant referring to “Cooling System Draining:
in Section 1F”.
3) Detach breather union (1) from air intake pipe (2).
4) Disconnect air intake pipe (2).
5) Disconnect engine coolant hoses (1) from electric
throttle body assembly (3).
6) Disconnect connector (2) from electric throttle body
assembly.
7) Remove electric throttle body assembly from intake
manifold.
Installation
1) Clean mating surfaces and install new throttle body
gasket to intake manifold.
2) Install electric throttle body assembly (1) to intake
manifold.
3) Connect connector (2) to electric throttle body
assembly securely.
4) Connect engine coolant hoses (3) to electric throttle
body assembly (1).
5) Connect air intake pipe (1) and breather union (2).
6) Tighten air intake pipe bolt (3) to specified torque.
Tightening torque
Air intake pipe bolt (a): 3 N·m (0.3 kgf-m, 2.5 lb-
ft)
7) Refill coolant referring to “Cooling System Flush and
Refill: in Section 1F”.
8) Connect negative cable at battery.
9) Perform calibration of electric throttle body assembly
referring to “Electric Throttle Body System
Calibration: in Section 1C” if replaced.
Throttle Body Cleaning
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Clean electric throttle body assembly referring to
“Throttle Valve Visual Check” under “Electric Throttle
Body Assembly On-Vehicle Inspection: in Section 1C”.
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