Air Pump: Installation

1. Install the air injection control driver to the body with the 2 bolts.

   Torque: 19.5 Nm (198 kgf cm, 14 ft. lbf) 

2. Connect the 2 connectors to the air injection control driver.
   Fig 1: Installing Air Injection Control Driver To Body With Bolts

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Connect the 2 vacuum hoses to the 2 No. 2 air switching valves.
2. Install 2 new gaskets and 2 No. 2 air switching valves to the rear water by-pass joint with the 4 bolts.

   Torque: 10 Nm (102 kgf cm, 7 ft. lbf) 

   Fig 2: Connecting Vacuum Hoses To No. 2 Air Switching Valve

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Install 2 new gaskets, and connect the 2 No. 3 air tubes to the No. 2 air switching valve with the 4 bolts.

   Torque: 10 Nm (102 kgf cm, 7 ft. lbf) 

4. Install the 2 new gaskets, and connect the 2 No. 3 air tubes to the exhaust manifold with the 4 nuts.

   Torque: 10 Nm (102 kgf cm, 7 ft. lbf) 

   Fig 3: Connecting No. 3 Air Tubes To Exhaust Manifold With Nuts

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Install the air pump with the 4 bolts.

   Torque: 16 Nm (163 kgf cm, 12 ft. lbf) 

2. Connect the pressure sensor connector for the air injection systems.
3. Connect the air switching valve connector.
4. Connect the No. 2 air hose to the air switching valve.
   Fig 4: Installing Air Pump With Bolts

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Install the valve set to the intake manifold with the 2 bolts.

   Torque: 7.5 Nm (76 kgf cm, 66 in. lbf) 

2. Connect the 2 vacuum hoses to the valve set.

1. Perform initialization (see INITIALIZATION ).
   NOTE: Certain systems need to be initialized after disconnecting and reconnecting the cable from the negative (-) battery terminal.

Check for the engine coolant leaks (see COOLING SYSTEM ).