Subaru 2009 IMPREZA Service Manual page 1215

IGNITION
1. General Description
A: SPECIFICATION
Type
Ignition coil Ignition system
Manufacturer
Manufacturer and type
Thread size (diameter, pitch, length)
Spark plug
Spark plug gap
Electrode
B: COMPONENT
T2
(2)
(1)
(1) Spark plug
General Description
Item
T1
(2) Ignition coil
IG(H4DOTC)-2
Specifications
Independent ignition coil
Diamond Electric
NGK: SILFR6A
mm 14,1.25,26.5
mm (in) 0.7 — 0.8 (0.028 — 0.031)
Tightening torque:N·m (kgf-m, ft-lb)
T1: 21 (2.1, 15.5)
T2: 16 (1.6, 11.8)
FK0334
Iridium
T1
(1)
(2)
T2
IG-02079