Honda Civic Service Manual page 254

TWC
HO2S
Inspection
l. Using a flashlight, make a visual check for plugging,
melting and cracking of the catalyst.
D16Y5, D16Y7 engines:
816A2, D16Y8 engines:
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lT
a
A
FLASHLIGI{T
9 - 1 2
Replacement
Primary HO2S:
1. Remove the primary HO2S.
D16Y5, D15Y7 engines:
a . D i s c o n n e c t t h e p r i m a r y H O 2 S c o n n e c t o r , t h e n
remove the cover.
8 x ' 1 . 2 5 m m
24 N.m {2.4 kgl.m,
PRIMARY H02S
CONNECTOR
b. Remove the primary HO2S.
| \l ,l(
I bK/l
l llw.
/ \ \
(
PBIMARY HO2S
44 N m (4.5 kgf.m, 33 tbI.ft)