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FUEL SYSTEM (DFI) 3-89
Throttle Body Assy
Idle Speed Inspection/Adjustment
•
Refer to the Idle Speed Inspection in the Periodic Main-
tenance chapter .
Throttle Bore Cleaning
•
Refer to the Throttle Control System Inspection in the Pe-
riodic Maintenance chapter.
Engine Vacuum Synchronization
Inspection/Adjustment
•
Refer to the Engine Vacuum Synchronization Inspection
in the Periodic M aintenance chapter.
High Altitude Performance Adjustment
•
Any modification is not necessary in this model since the
atmospheric pressure sensor senses atmospheric pres-
sure change due to high altitude and the ECU compen-
sates the change.
Throttle Body Assy Removal
WARNING
Gasoline is extremely flammable and can be ex-
plosive under certain conditions. Turn t he ignition
switch OFF. Disconnect the battery (–) cable ter-
minal. Do not smoke. Make sure the area is
well-ventilated and free from any source of flame
or sparks; this includes any appliance with a pilot
light.
Be prepared for fuel spillage: any spilled fuel must
be completely wiped up immediately.
•
Remove:
Fuel Tank (see Fuel Tank Removal)
Vacuum Switch Valve Vacuum Hose [A] (from air cleaner
housing [B])
Front [C]
•
Remove the vacuum hoses from the positions [A] shown.
Front [B]