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FUEL SYSTEM (DFI) 3-125
Throttle Body Assy
Idle Speed Inspection
•
Refer to the Idle Speed Inspection in the Periodic Mainte-
nance chapter (see Idle Speed Inspection in the Periodic
Maintenance chapter).
Throttle Bo re Cleaning
•
Check the throttle bore for cleanliness as follows.
○
Remove the throttle body assy (see Throttle Body Assy
Removal).
○
Check the main throttle valves and throttle bores [A] for
carbon deposits by opening the main throttle valves.
If any carbon accumulates, wipe the carbon off the throt-
tle bores around the throttle bores and the throttle valves,
using a cotton pad penetrated with a high-flash point sol-
vent.
Synchronization Inspection
•
Refer to the Engine Vacuum Synchronization Inspection
in the Periodic Maintenance chapter (see Engine Vacuum
Synchronization Inspection in the Periodic Maintenance
chapter).
Synchronization Adjustment
•
Refer to the Engine Vacuum Synchronization Inspection
in the Periodic Maintenance chapter (see Engine Vacuum
Synchronization Inspection in the Periodic Maintenance
chapter).
Throttle Body Assy Removal
WARNING
Gasoline is extremely flammable and can be ex-
plosive under certain conditions. Turn the 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)
Air Cleaner Housing (see Air Cleaner Housing Removal)
•
Be sure to place a piece of c loth around the delivery pipe
[A] of the throttle body assy.
•
Disconnect the connectors [B].
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