- Disconnect the IAP sensor vacuum hoses 1, ISC valve hoses 2 and fuel feed hoses 3.
- Remove the fuel delivery pipes and hose assembly 4.
- Remove the fuel injectors 5.
- Remove the TP sensor 6 and STP sensor 7 with the special tool.
- 09930-11950: Torx wrench
Note: Prior to disassembly, mark each sensor's original position with a paint or scribe for accurate reinstallation.
Caution: Never remove the STVA 8 from the throttle body.
Caution: This screw 8 is factory-adjusted at the time of delivery and therefore avoid removing or turning it unless otherwise necessary.
Caution: Never remove the secondary throttle valve 10 and throttle valve 11.
Throttle body cleaning
Warning: Some carburetor cleaning chemicals, especially dip-type soaking solutions, are very corrosive and must be handled carefully. Always follow the chemical manufacturer's instructions on proper use, handling and storage.
- Clean passageways (except for main bore) with a spray-type carburetor cleaner and blow dry with compressed air.
Caution:
- Never clean the main bore of throttle body to prevent come off molybdenum from the throttle valve.
- Do not use wire to clean passageways. Wire can damage passageways. If the components cannot be cleaned with a spray cleaner it may be necessary to use a dip-type cleaning solution and allow them to soak. Always follow the chemical manufacturer's instructions for proper use and cleaning of the throttle body components. Do not apply carburetor cleaning chemicals to the rubber and plastic materials.
Inspection
Check following items for any damage or clogging:
- O-ring
- Throttle valve
- Secondary throttle valve
- Vacuum hose
- Delivery hose
- Injector dust seal