Air Injection: Service and Repair
REMOVAL1. REMOVE THROTTLE BODY COVER
2. REMOVE INTAKE MANIFOLD
3. REMOVE VSV FOR AIR INJECTION SYSTEM
a. Remove the 2 bolts and 2 VSVs from the intake manifold.
b. Remove the 2 vacuum hoses from the 2 VSVs.
4. REMOVE AIR PUMP ASSEMBLY
a. Disconnect the air hose No.2 from the air switching valve.
b. Disconnect the air switching valve connector.
c. Disconnect the pressure sensor connector for the air injection system.
d. Remove the 4 bolts and air pump assembly.
5. REMOVE NO.2 AIR SWITCHING VALVE
a. Remove the 4 nuts and 2 gaskets, and disconnect the 2 No.3 air tubes from the exhaust manifolds.
b. Remove the 4 bolts, 2 gaskets and the 2 No.3 air tubes from the 2 No.2 air switching valves.
c. Remove the 4 bolts, 2 gaskets and the 2 No.2 air switching valves from the rear water by-pass joint.
d. Remove the 2 vacuum hoses from the No.2 air switching valves.
6. REMOVE AIR INJECTION CONTROL DRIVER
a. Disconnect the 2 connectors from the air injection control driver.
b. Remove the 2 bolts and air injection control driver from the body.
DISASSEMBLY
1. REMOVE PRESSURE SENSOR
a. Remove the vacuum hose from the pressure sensor and air switching valve.
b. Remove the 2 bolts and pressure sensor from the air switching valve.
2. REMOVE AIR SWITCHING VALVE
a. Remove the 2 bolts and air switching valve from the air pump bracket.
b. Remove the No.1 air hose from the air switching valve and air pump.
REASSEMBLY
1. INSTALL AIR SWITCHING VALVE
a. Install the No.1 air hose to the air switching valve and air pump.
b. Install the air switching valve with the 2 bolts to the air pump bracket.
Torque: 16 N.m (163 kgf.cm, 12 ft.lbf)
2. INSTALL PRESSURE SENSOR
a. Install the pressure sensor with the 2 bolts to the air switching valve.
Torque: 5.0 N.m (55 kgf.cm, 48 in.lbf)
b. Install the vacuum hose to the pressure sensor and air switching valve.
INSTALLATION
1. INSTALL AIR INJECTION CONTROL DRIVER
a. Install the air injection control driver with the 2 bolts to the body.
Torque: 18 N.m (184 kgf.cm, 13 ft.lbf)
b. Connect the 2 connectors to the air injection control driver.
2. INSTALL NO.2 AIR SWITCHING VALVE
a. Connect the 2 vacuum hoses to the No.2 air switching valves.
b. Install 2 new gaskets and 2 No.2 air switching valves with the 4 bolts to the rear water by-pass joint.
Torque: 10 N.m (102 kgf.cm, 7 ft.lbf)
c. Install 2 new gaskets, and connect the 2 No.3 air tubes with the 4 bolts to the No.2 air switching valve.
Torque: 10 N.m (102 kgf.cm, 7 ft.lbf)
d. Install the 2 new gaskets, and connect the 2 No.3 air tubes with the 4 nuts to the exhaust manifold.
Torque: 10 N.m (102 kgf.cm, 7 ft.lbf)
3. INSTALL AIR PUMP
a. Install the air pump assembly with the 4 bolts.
Torque: 16 N.m (163 kgf.cm, 12 ft.lbf)
b. Connect the pressure sensor connector for the air injection system.
c. Connect the air switching valve connector.
d. Connect the air hose No.2 to the air switching valve.
4. INSTALL VSV FOR AIR INJECTION SYSTEM
a. Install the 2 VSVs with the 2 bolts to the intake manifold.
Torque: 7.5 N.m (76 kgf.cm, 66 in.lbf)
b. Connect the 2 vacuum hoses to the 2 VSVs.
5. INSTALL INTAKE MANIFOLD
6. INSTALL THROTTLE BODY COVER