Measure the outside diameter [D] of the seating pattern on the valve seat.
If the outside diameter is too large or too small, repair the seat (see Valve Seat Repair).
Valve Seating Surface Outside Diameter Standard:
Exhaust 23.9 
24.1 mm (0.941
0.949 in.)
Intake 30.4 
30.6 mm (1.197
1.205 in.)
Measure the seat width [E] of the portion where there is no build-up carbon (white portion) of the valve seat with a vernier caliper.
Good [F]
If the width is too wide [G], too narrow [H] or uneven [J], repair the seat (see Valve Seat Repair).
Valve Seating Surface Width Standard:
Exhaust 0.8 
1.2 mm (0.03
0.05 in.)
Intake 0.5 
1.0 mm (0.02
0.04 in.)
Valve-to-Guide Clearance Measurement (Wobble Method)
Valve Seat RepairIntake Air Pressure Sensor #2 Removal
NOTICE
Never drop the intake air pressure sensor #2 especially
on a hard surface. Such a shock to the sensor
can damage it.
Remove:
Air Cleaner Housing (see Air Cleaner Housing Removal
in the Fuel System (DFI) chapter)
Intake Air Pressure Sensor #2 Connector [A]
Remove the intake air ...
Fuel Pump Operating Voltage Inspection
NOTE
Be sure the battery is fully charged.
Turn the ignition switch to OFF.
Remove:
Fuel Tank Bolts (see Fuel Tank Removal)
Fuel Tank Bracket Bolts (see Fuel Tank Removal)
Disconnect the fuel pump lead connector and connect the
harness adapter [A] between these connectors as shown
i ...
KIBS Hydraulic Unit Communication Error (Service Code 1b, KIBS Equipped
Models)
KIBS Hydraulic Unit Communication Line Inspection
When the data (for status of KIBS hydraulic unit) is not
sent from the KIBS hydraulic unit to the meter unit and
ECU, the service code 1b is displayed.
The data is sent through the CAN communication line.
The service code 1b is detected with the ...