Subaru Impreza 3 / Impreza WRX / Impreza WRX STI. Service manual — part 193
IG(w/o STI)-7
Spark Plug
IGNITION
3) Using a nylon brush, etc., clean and remove the
carbon or oxide deposits from the spark plug. If de-
posits are too stubborn, replace the spark plugs.
After cleaning the spark plugs, check the spark
plug gap “L” using a gap gauge. If it is not within the
standard, replace the spark plug.
NOTE:
• Never use a plug cleaner.
• Do not use a metal brush as it may damage the
electrode area.
Spark plug gap L:
Standard
0.7 — 0.8 mm (0.028 — 0.031 in)
IG-02095
L
IG(w/o STI)-8
Ignition Coil
IGNITION
3. Ignition Coil
A: REMOVAL
Direct ignition type is adopted. Refer to “Spark
Plug” for removal procedure. <Ref. to IG(w/o STI)-
B: INSTALLATION
Install in the reverse order of removal.
Tightening torque:
16 N·m (1.6 kgf-m, 11.8 ft-lb)
C: INSPECTION
For inspection procedure, refer to “Diagnostics for
Engine Starting Failure”. <Ref. to EN(H4DOTC)(di-
STARTING/CHARGING SYSTEMS
SC(w/o STI)
Page
General Description . . . . . . . . . . . . . . . . . . . . ...2
SC(w/o STI)-2
General Description
STARTING/CHARGING SYSTEMS
1. General Description
A: SPECIFICATION
Specifications for models other than STI are includ-
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