2009 SUBARU TRIBECA Exhaust

EX(H6DO)-5
Front Exhaust Pipe
EXHAUST
B: INSTALLATION
1) Install the front oxygen (A/F) sensor and rear ox-
ygen sensor. TION, Front Oxygen (A/F) Sensor.> FU(H6DO)-30, INSTALLATION, Rear Oxygen
Sensor.>
2) Install the front exhaust pipe (RH) to front ex-
haust pipe assembly.
NOTE:
Use a new gasket.
Tightening torque:
30 N·m (2.5 kgf-m, 22.4 ft-lb)
3) Install the front exhaust pipe assembly to vehi-
cle.
4) Temporarily tighten the bolts which hold front ex-
haust pipe assembly to hanger bracket.
5) Install the nuts to cylinder head which hold front
exhaust pipe.
Tightening torque:
30 N·m (2.5 kgf-m, 22.4 ft-lb)
6) Install the under cover.
7) Tighten the bolts which install front exhaust pipe
to rear exhaust pipe.
Tightening torque:
18 N·m (2.5 kgf-m, 13.0 ft-lb)
8) Tighten the bolts which hold front exhaust pipe
assembly to hanger bracket.
Tightening torque:
35 N·m (2.5 kgf-m, 26.0 ft-lb)
9) Connect the front oxygen (A/F) sensor connec-
tor (A) and rear oxygen sensor connector (B).
10) Lower the vehicle.
11) Connect the ground cable to battery.
C: INSPECTION
1) Check the connections and welds for exhaust
leaks.
2) Make sure there are no holes or rusting.
EX-02017
EX-00061
EX-02016
EX-02015
EX-00061
EX-02014
(A)
(B)

EX(H6DO)-6
Rear Exhaust Pipe
EXHAUST
3. Rear Exhaust Pipe
A: REMOVAL
1) Separate the rear exhaust pipe from front ex-
haust pipe.
CAUTION:
Be careful, exhaust pipe is hot.
2) Separate the rear exhaust pipe from muffler.
CAUTION:
Be careful not to pull down the rear exhaust
pipe.
•LH side
•RH side
3) Apply a coat of spray type lubricant to the mating
area of cushion rubber.
4) Remove the rear exhaust pipe bracket from
cushion rubber.
EX-02015
EX-00222
EX-02130
EX-00219

EX(H6DO)-7
Rear Exhaust Pipe
EXHAUST
B: INSTALLATION
1) Apply a coat of spray type lubricant to the mating
area of cushion rubber.
2) Install the rear exhaust pipe bracket to cushion
rubber.
3) Install the rear exhaust pipe to muffler.
NOTE:
Use a new gasket and self-locking nut.
Tightening torque:
48 N·m (2.5 kgf-m, 35.4 ft-lb)
•LH side
•RH side
4) Install the rear exhaust pipe to center exhaust
pipe.
Tightening torque:
18 N·m (2.5 kgf-m, 13.0 ft-lb)
C: INSPECTION
1) Check the connections and welds for exhaust
leaks.
2) Make sure there are no holes or rusting.
3) Check the cushion rubber for wear or crack.
EX-00219
EX-00222
EX-02130
EX-02015

EX(H6DO)-8
Muffler
EXHAUST
4. Muffler
A: REMOVAL
1) Separate the muffler from rear exhaust pipe.
CAUTION:
Be careful, exhaust pipe is hot.
•LH side
•RH side
2) Apply a coat of spray type lubricant to the mating
area of cushion rubber.
•LH side
•RH side
3) Remove the front and rear cushion rubber, and
then remove the muffler.
B: INSTALLATION
Install in the reverse order of removal.
NOTE:
Use a new gasket and self-locking nut.
Tightening torque:
48 N·m (2.5 kgf-m, 35.4 ft-lb)
•LH side
•RH side
C: INSPECTION
1) Check the connections and welds for exhaust
leaks.
2) Make sure there are no holes or rusting.
3) Check the cushion rubber for wear or crack.
EX-00222
EX-02130
EX-00220
EX-00221
EX-00222
EX-02130

FU(H6DO)-28
Front Oxygen (A/F) Sensor
FUEL INJECTION (FUEL SYSTEMS)
14.Front Oxygen (A/F) Sensor
A: REMOVAL
1) Set the vehicle on a lift.
2) Disconnect the ground cable from battery.
3) Lift-up the vehicle.
4) Disconnect the connector of front oxygen (A/F)
sensor.
•LH side
•RH side
5) Apply spray-type lubricant to the threaded por-
tion of front oxygen (A/F) sensor, and leave it for
one minute or more.
6) Remove the front oxygen (A/F) sensor.
CAUTION:
When removing the front oxygen (A/F) sensor,
wait until exhaust pipe cools, otherwise it will
damage the exhaust pipe.
•LH side
•RH side
B: INSTALLATION
1) Before installing front oxygen (A/F) sensor, ap-
ply anti-seize compound only to the threaded por-
tion of front oxygen (A/F) sensor to make the next
removal easier.
Anti-seize compound:
NEVER-SEEZ NS-165 or the equivalent
CAUTION:
Never apply anti-seize compound to the protec-
tor of front oxygen (A/F) sensor.
2) Install the front oxygen (A/F) sensor.
Tightening torque:
21 N·m (2.1 kgf-m, 15.2 ft-lb)
•LH side
•RH side
FU-02139
FU-02140
FU-02141
FU-02142
FU-02141
FU-02142

FU(H6DO)-30
Rear Oxygen Sensor
FUEL INJECTION (FUEL SYSTEMS)
15.Rear Oxygen Sensor
A: REMOVAL
1) Set the vehicle on a lift.
2) Disconnect the ground cable from battery.
3) Lift-up the vehicle.
4) Disconnect the connector from rear oxygen sen-
sor.
•LH side
•RH side
5) Remove the clip holding the harness.
6) Apply spray-type lubricant to the threaded por-
tion of rear oxygen sensor, and leave it for one
minute or more.
7) Remove the rear oxygen sensor.
CAUTION:
When removing the rear oxygen sensor, wait
until exhaust pipe cools, otherwise it will dam-
age the exhaust pipe.
•LH side
•RH side
B: INSTALLATION
1) Before installing rear oxygen sensor, apply the
anti-seize compound only to the threaded portion of
rear oxygen sensor to make the next removal eas-
ier.
Anti-seize compound:
NEVER-SEEZ NS-165 or the equivalent
CAUTION:
Never apply anti-seize compound to the protec-
tor of rear oxygen sensor.
2) Install the rear oxygen sensor.
Tightening torque:
21 N·m (2.1 kgf-m, 15.2 ft-lb)
•LH side
•RH side
3) Hold the harness with clip.
FU-02143
FU-02144
FU-02145
FU-02146
FU-02145
FU-02146

GD(H6DO)-62
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
AK:DTC P0131 O2 SENSOR CIRCUIT LOW VOLTAGE (BANK 1 SENSOR 1)
1. OUTLINE OF DIAGNOSIS
Detect the open or short circuit of sensor.
Judge as NG when the element impressed voltage is out of range, or the element current is out of range.
2. COMPONENT DESCRIPTION
3. ENABLE CONDITIONS
4. GENERAL DRIVING CYCLE
Always perform the diagnosis continuously.
5. DIAGNOSTIC METHOD
Judge as NG when the continuous time of completing any malfunction criteria below is more than 1 second.
Time Needed for Diagnosis: 1 second
Malfunction Indicator Light: Illuminates as soon as a malfunction occurs.
6. DTC CLEAR CONDITION
•When the OK idling cycle is completed 40 times in a row
•When “Clear Memory” is performed
(A) Electromotive force (C) Lean (D) Rich
(B) Air fuel ratio

(1) Atmosphere (3) ZrO2(4) Ceramic heater
(2) Exhaust gas
Secondary Parameters Enable Conditions
Vo l t a g e≥ 10.9 V
Judgment Value
Malfunction Criteria Threshold Value
Input voltage < 1.8 V
Input current < –0.005 A
(1)
(2)
(4)
(2)
(3)
EN-01693
(C) (B) (D)
(A)

GD(H6DO)-64
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
AL:DTC P0132 O2 SENSOR CIRCUIT HIGH VOLTAGE (BANK 1 SENSOR 1)
1. OUTLINE OF DIAGNOSIS
Detect the open or short circuit of sensor.
Judge as NG when the element impressed voltage is out of range, or the element current is out of range.
2. COMPONENT DESCRIPTION
3. ENABLE CONDITIONS
4. GENERAL DRIVING CYCLE
Always perform the diagnosis continuously.
5. DIAGNOSTIC METHOD
Judge as NG when the continuous time of completing any malfunction criteria below is more than 1 second.
Time Needed for Diagnosis: 1 second
Malfunction Indicator Light: Illuminates as soon as a malfunction occurs.
6. DTC CLEAR CONDITION
•When the OK idling cycle is completed 40 times in a row
•When “Clear Memory” is performed
(A) Electromotive force (C) Lean (D) Rich
(B) Air fuel ratio

(1) Atmosphere (3) ZrO2(4) Ceramic heater
(2) Exhaust gas
Secondary Parameters Enable Conditions
Vo l t a g e≥ 10.9 V
Judgment Value
Malfunction Criteria Threshold Value
Input voltage≥ 3.8 V
Input current≥ 0.005 A
(1)
(2)
(4)
(2)
(3)
EN-01693
(C) (B) (D)
(A)