Honda Civic Service Manual page 255

Bt6A2, Dl6Y8 engines:
a.
Disconnect the primary HO2S connector then
remove the primary HO2S.
816A2 engine
D16Y8 engine
PRIMARY
H02S CONNECTOR
PRIMARY HO2S
44 N.m {4.5 kgt'm.33 lbf'ft)
L
2.
Install the primary HO2S in reverse order of removal'
Secondsry H02S:
1. Remove the secondary HO2S
Dl6Y5, Dt6Y7 engines:
a . D i s c o n n e c t t h e s e c o n d a r y H O 2 S c o n n e c t o r .
then remove the secondary HO2S'
02 SENSOR
816A2, Dt6Y8 ongin6s:
a.
Remove the grommet, and pull out the secondary
HO2S connector, then disconnect the secondary
HO25 connector'
SECONOARY
H()2S
CONNECTOR
{cont'd)
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