Subaru Impreza 2002 Service Manual page 862

2. Front Catalytic Converter
A: REMOVAL
1) Set the vehicle on a lift.
2) Disconnect the ground cable from battery.
3) Disconnect the front oxygen (A/F) sensor con-
nector.
4) Disconnect the connector from rear oxygen sen-
sor connector.
5) Lift-up the vehicle.
6) Remove the under cover.
FRONT CATALYTIC CONVERTER
EMISSION CONTROL (AUX. EMISSION CONTROL DEVICES)
G6M0095
B2M4243
B2M4244
EC-3
7) Separate the center exhaust pipe from rear ex-
haust pipe.
CAUTION:
Be careful, the exhaust pipe is hot.
8) Remove the nuts which hold front exhaust pipe
onto cylinder heads.
9) Remove the front and center exhaust pipe from
hanger bracket.
CAUTION:
Be careful not to pull down the front exhaust
pipe and center exhaust pipe.
B2M3109
B2M3200
B2M3111