1D-16 Engine Mechanical:
Inspection
Check following items for any defects or clogging.
Replace the damaged part if necessary.
•O-rings
• Throttle valves
• Secondary throttle valves
• Vacuum hoses
• ISC valve hoses
• Fuel delivery pipes
• Cushion seals
• Fuel injectors
ISC Valve Visual Inspection
B837H11406013
Visually inspect the ISC valve if necessary.
• Inspect the ISC valve for any carbon deposition
defects. Clean or replace the ISC valve if necessary.
Throttle Valve Synchronization
B837H11406014
Use of SDS Tool
Check and adjust the throttle valve synchronization
among four cylinders.
1) Start up the engine and run it in idling condition for
warming up.
2) Stop the warmed-up engine.
3) Lift and support the fuel tank. Refer to “Fuel Tank
Removal and Installation in Section 1G (Page 1G-
9)”.
4) Remove the air cleaner box. Refer to “Air Cleaner
Box Removal and Installation (Page 1D-7)”.
5) Disconnect the respective vacuum hoses (1) from
each vacuum nipple on the throttle body.
6) Disconnect the IAP sensor coupler (2).
7) Connect the respective vacuum tester hoses (3) to
the vacuum nipples.
8) Set up the SDS tool. (Refer to the SDS operation
manual for further details.)
9) Start the engine.
CAUTION
!
Avoid dirt drawn into the throttle body while
running the engine without air cleaner box
cover. Dirt drawn into the engine will damage
the internal engine parts.
10) Click “Date monitor”.
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I837H1140293-01
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3
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