Subaru Legacy III (2000-2003 year). Manual - part 249

EC(H6DO)-4

EMISSION CONTROL (AUX. EMISSION CONTROL DEVICES)

FRONT CATALYTIC CONVERTER

12) Separate front catalytic converter (RH) from
front exhaust pipe.

B: INSTALLATION

NOTE:
Replace gaskets with new ones.
1) Install front catalytic converter (RH) to front ex-
haust pipe.

Tightening torque:

30 N·m (3.1 kgf-m, 22.4 ft-lb)

2) Install front exhaust pipe assembly to the vehi-
cle. And temporarily tighten bolt which installs front
exhaust pipe to hanger bracket.

3) Tighten nuts which hold front exhaust pipe onto
cylinder heads.

Tightening torque:

30 N·m (3.1 kgf-m, 22.4 ft-lb)

4) Tighten bolts which secure front exhaust pipe
assembly to rear exhaust pipe.

Tightening torque:

18 N·m (1.8 kgf-m, 13.0 ft-lb)

5) Tighten bolt which holds front exhaust pipes to
hanger bracket.

Tightening torque:

35 N·m (3.6 kgf-m, 26.0 ft-lb)

EX-00062

EX-00062

EX-00061

EX-00060

RH side

LH side

EX-00059

EX-00061

EC(H6DO)-5

EMISSION CONTROL (AUX. EMISSION CONTROL DEVICES)

FRONT CATALYTIC CONVERTER

6) Connect connector to rear oxygen sensor con-
nector.

7) Install front oxygen (A/F) sensor harness to the
clips attached to the cylinder head covers.
8) Install under cover.
9) Lower the vehicle.
10) Connect front oxygen (A/F) sensor connector.

11) Install air cleaner case and air intake duct.
<Ref. to IN(H6DO)-5, INSTALLATION, Air Clean-
er.> and <Ref. to IN(H6DO)-7, INSTALLATION, Air
Intake Duct.>
12) Install battery.

C: INSPECTION

1) Make sure there are no exhaust leaks from con-
nections and welds.
2) Make sure there are no holes or rusting.

EX-00058

EX-00056

LH side

RH side

EC(H6DO)-6

EMISSION CONTROL (AUX. EMISSION CONTROL DEVICES)

REAR CATALYTIC CONVERTER

3. Rear Catalytic Converter

A: REMOVAL

The front and rear catalytic converter are integrated
into one unit. Therefore, the removal and installa-
tion procedures are the same as the those for the
front catalytic converter. <Ref. to EC(H6DO)-3, RE-
MOVAL, Front Catalytic Converter.>

B: INSTALLATION

The front and rear catalytic converter are integrated
into one unit. Therefore, the removal and installa-
tion procedures are the same as the ones de-
scribed under front catalytic converter. <Ref. to
EC(H6DO)-4, INSTALLATION, Front Catalytic
Converter.>

C: INSPECTION

1) Make sure there are no exhaust leaks from con-
nections and welds.
2) Make sure there are no holes or rusting.

(A) Front catalytic converter RH

(B) Front catalytic converter LH

(C) Rear catalytic converter

(A) Front catalytic converter RH

(B) Front catalytic converter LH

(C) Rear catalytic converter

EC-00108

( A )

( B )

( C )

EC-00108

( A )

( B )

( C )

EC(H6DO)-7

EMISSION CONTROL (AUX. EMISSION CONTROL DEVICES)

CANISTER

4. Canister

A: REMOVAL

1) Lift-up the vehicle.
2) Loosen two clamps which hold two canister hos-
es, and disconnect evaporation hoses from canis-
ter.

3) Remove canister from body.

B: INSTALLATION

Install in the reverse order of removal.

Tightening torque:

23 N·m (2.3 kgf-m, 17 ft-lb)

C: INSPECTION

Make sure the canister and canister hoses are not
cracked or loose.

EC-00127

EC-00128

EC-00128