LEMON Manuals
: Even more car manuals for everyone: 1960-2025
Home
>>
Subaru
>>
2021
>>
WRX STI
>>
Repair and Diagnosis
>>
Engine Performance
>>
Engine Control Systems
>>
Fuel Injection System (2.5L)
>>
General Description
>>
Preparation Tool
>>
General Tool
April 5, 2026:
LEMON Manuals is launched!
Read the announcement.
General Tool
TOOL NAME
REMARKS
Circuit tester
Used for measuring resistance, voltage and current.
Oscilloscope
Used for inspecting the waveform of each sensor.
Mighty Vac
Used for inspecting the manifold absolute pressure sensor.
DST-i
Used together with Subaru Select Monitor 4.