Throttle Body: Service and Repair

Removal
1. Disconnect negative (-) cable at battery.
2. Drain cooling system.
3. Remove strut tower bar.





4. Disconnect accelerator cable (1) and or A/T throttle cable (2) from throttle body.
5. Disconnect water hoses from throttle body.





6. Remove surge tank cover.
Remove intake air pipe (1) and surge tank pipe (2).
7. Disconnect connectors of TP sensor and IAC valve.
8. Disconnect ground wire at connector.





9. Remove clamp bracket (1) and harness clamps from intake collector.
10. Disconnect connectors of EVAP canister purge valve (1), MAP sensor and EGR valve (5).
11. Disconnect PCV valve (6) from cylinder head with hose connected, breather hose (3) from cylinder head and EVAP canister purge valve hose (2).





12. Detach EGR pipe (4) from intake air collector.
13. Remove throttle body (3) and intake collector (2) from intake manifold (1).
14. Disconnect hoses of PCV from throttle body.





15. Remove throttle body from intake collector.

NOTE:
^ TP sensor (4), or other components containing rubber must not be placed in a solvent or cleaner bath. A chemical reaction will cause these parts to swell, harden or get distorted.
^ Don't out drills or wires into Passages for cleaning. It causes damages in passages.

Installation





1. Clean mating surfaces and install throttle body gasket to intake collector (1) with new gasket (2).
2. Install throttle body to intake collector and tighten bolts.
3. Connect PCV hose.
4. Install throttle body and intake collector to intake manifold with new intake collector gaskets.
5. Install EGR pipe with new gaskets.
6. Connect breather hose and EVAP canister purge valve hose and install PCV valve to cylinder head.
7. Connect connectors of EVAP canister purge valve, MAP sensor and EGR valve.
Fix wire harness with clamps.
8. Install clamp bracket to intake collector.
9. Connect ground wire connector.
10. Connect connectors of TP sensor, ground and IAC valve.
11. Install surge tank pipe to intake manifold with new gaskets and intake air pipe to throttle body. Install surge tank cover.
12. Connect engine coolant hoses to throttle body.
13. Connect accelerator cable and A/T throttle cable (A/T).





14. Install strut tower bar (1) and tighten bolts.
15. Refill cooling system.
16. Connect negative (-) cable at battery.
17. Adjust accelerator cable and A/T throttle cable.

Cleaning

CAUTION:
^ Do not blow compressed air through bypass air passage with IAC valve installed to throttle body. This will cause IAC valve to malfunction.
^ TP sensor, idle air control valve or other components containing rubber must not be places in a solvent or cleaner bath.
A chemical reaction will cause these Parts to swell, harden or get distorted.





Clean throttle body bore and bypass air passages (1) by blowing compressed air.