Air Injection Control Valve: Service and Repair
REMOVAL1. DISCHARGE FUEL SYSTEM PRESSURE
2. DRAIN ENGINE COOLANT
3. REMOVE THROTTLE BODY COVER SUB-ASSEMBLY
4. REMOVE AIR CLEANER HOSE ASSEMBLY
5. DISCONNECT FUEL HOSE
6. DISCONNECT FUEL NO. 2 HOSE
7. DISCONNECT CONNECTORS FROM INTAKE MANIFOLD
8. DISCONNECT HOSES FROM INTAKE MANIFOLD
9. REMOVE INTAKE MANIFOLD ASSEMBLY
10. REMOVE AIR NO.2 TUBE
a. Remove the 4 nuts and 2 gaskets, and disconnect the air No.2 tube.
11. REMOVE AIR NO.3 TUBE
a. Remove the 4 nuts and 2 gaskets, and disconnect the air No.3 tube.
12. REMOVE WATER BY-PASS JOINT RR
13. REMOVE NO. 2 AIR SWITCHING VALVE
a. Remove the 2 vacuum hoses from the No.2 air switching valves.
b. Remove the 4 bolts, 2 gaskets and the 2 No.2 air switching valves from the water by-pass joint rear.
14. REMOVE WATER BY-PASS PIPE SUB-ASSEMBLY
15. REMOVE AIR PUMP ASSEMBLY WITH BRACKET
16. 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.
17. 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 alive and air pump.
INSTALLATION
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 (51 kgf.cm, 44 in.lbf)
b. Install the vacuum hose to the pressure sensor and air switching valve.
3. INSTALL AIR PUMP ASSEMBLY WITH BRACKET
4. INSTALL WATER BY-PASS PIPE SUB-ASSEMBLY
5. INSTALL NO. 2 AIR SWITCHING VALVE
a. Install 2 new gaskets and the 2 No.2 air switching valves with the 4 bolts to the water by-pass joint rear.
Torque: 10 N.m 10.2 kgf.cm, 7 ft.lbf)
b. Connect the 2 vacuum hoses to the No.2 air switching valves.
6. INSTALL WATER BY-PASS JOINT RR
7. INSTALL NO. 3 AIR TUBE
a. Install the 4 nuts and 2 new gaskets, and connect the No.3 air tube.
Torque: 10 N.m 10.2 kgf.cm, 7 ft.lbf)
8. INSTALL NO. 2 AIR TUBE
a. Install the 4 nuts and 2 new gaskets, and connect the No.2 air tube.
Torque: 10 N.m 10.2 kgf.cm, 7 ft.lbf)
9. INSTALL INTAKE MANIFOLD ASSEMBLY
10. CONNECT HOSES FROM INTAKE MANIFOLD
11. CONNECT CONNECTORS FROM INTAKE MANIFOLD
12. INSTALL FUEL NO. 2 HOSE
13. INSTALL FUEL HOSE
14. INSTALL AIR CLEANER HOSE ASSEMBLY
15. INSTALL THROTTLE BODY COVER SUB-ASSEMBLY
16. ADD ENGINE COOLANT
17. CHECK FOR ENGINE COOLANT LEAKS
18. CHECK FOR FUEL LEAKS