Subaru 2002 IMPREZA Service Manual page 218

GENERAL DESCRIPTION
IGNITION
1. General Description
A: SPECIFICATIONS
Spark plug
I /
~
Item
I
Designation
I
Thread size mm 14, P
=
1.25
Spark gap mm (in) 0.7
-
0.8 (0.028
-
0.031)
and ignitor
I
Manufacturer
I
assemblv
DIAMOND
1
TvDe and manufacturer
I
PFRGG: NGK
I
IG(D0HC TURBO)-2