Adjust the engine idle speed periodically on the engine at normal operating temperature.
To adjust the idle speed:

Engine oil and filter change
Throtile cable playAir cleaner element inspection
Inspect air cleaner element
every 6 000 km (4 000 miles, 12 months)
Inspection
Remove the air cleaner element. Refer to “air cleaner element removal
and installation” in section 1d .
Inspect the air cleaner element for clogging. If it is
clogged with dirt, replace it with a new on ...
Special tools and equipment
Recommended service material
Note
required service material is also described in the following.
“Throttle body components” “engine bottom side assembly”
Special tool
...
Fuel level gauge inspection
Inspect the fuel level gauge in the following procedures:
remove the fuel pump. Refer to “fuel pump disassembly and assembly” in
section 1g .
Measure the resistance at each fuel level gauge in
float position. If the resistance is incorrect, replace
fuel level gauge with a ne ...