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SPECIAL TOOLS
Pressure gauge.
YU-03153, 90890-03153
This tool is used to measure
the fuel pressure.
FI diagnostic tool
YU-03182, 90890-03182
This tool is used to check the
fault codes and diagnose any
problems.
Fuel pressure adapter
YM-03186, 90890-03186
This tool is used to attach the
pressure gauge.
Test harness S-pressure sen-
sor (3P)
YU-03207, 90890-03207
This tool is connected be-
tween the intake air pressure
sensor and the wire harness
and is used to measure the
voltage.
Test harness-speed sensor
(3P)
YU-03208, 90890-03208
This tool is connected be-
tween the throttle position
sensor and the wire harness
and is used to measure the
voltage.
FI diagnostic tool sub-lead
YU-03212, 90890-03212
This tool is used to connect
the FI diagnostic tool to a bat-
tery.
Valve guide remover & in-
staller set
90890-04016
This tool is needed to remove
and install the valve guide.
Valve spring compressor
YM-4019, 90890-04019
This tool is needed to remove
and install the valve assem-
blies.
Tool name/Part number How to use Illustration