Emission Control (aux. Emission Control Devices) (h4dotc Engine) Subaru Impreza WRX GD/GG рестайлинг 2

Identifying Secondary Air Pump. Scheme 362

Identifying Secondary Air Combi Valve Components Location. Scheme 363

CAUTION

1. Wear work clothing, including a cap, protective goggles and protective shoes during operation.
2. Remove contamination including dirt and corrosion before removal, installation or disassembly.
3. Keep the disassembled parts in order and protect them from dust and dirt.
4. Before removal, installation or disassembly, be sure to clarify the failure. Avoid unnecessary removal, installation, disassembly, and replacement.
5. Be careful not to burn yourself, because each part on the vehicle is hot after running.
6. Be sure to tighten fasteners including bolts and nuts to the specified torque.
7. Place shop jacks or rigid racks at the specified points.
8. Before disconnecting electrical connectors of sensors or units, be sure to disconnect the ground cable from battery.

SPECIAL TOOL

SPECIAL TOOL ILLUSTRATION TOOL NUMBER DESCRIPTION REMARKS 18353AA000 CLAMP PLIERS Used for removing and installing PCV hose. This tool is a general tool that is made by CAILLAU in France. (Code: 54.0.000.205) Tool number is fixed as special tool in order to obtain it as easily as SUBARU genuine parts

Scheme 364

1. Remove the center exhaust pipe. < Ref. to «REMOVAL»(/subaru/impreza-wrx/gdgg-2-2005-2007/remont/exhaust/#exhaust-h4dotc-engine), Center Exhaust Pipe. >
2. Separate the front catalytic converter (A) from rear catalytic converter (B). (Scheme 364): Identifying Front Catalytic Converter From Rear Catalytic Converter

INSTALLATION

Note. Replace the gaskets with new ones. Install in the reverse order of removal.

INSPECTION

1. Make sure there are no exhaust leaks from connections and welds.
2. Make sure there are no holes or rusting.

REMOVAL

1. Remove the center exhaust pipe. < Ref. to «REMOVAL»(/subaru/impreza-wrx/gdgg-2-2005-2007/remont/exhaust/#exhaust-h4dotc-engine), Center Exhaust Pipe. >
2. Separate the rear catalytic converter (B) from front catalytic converter (A). see scheme 4: Identifying Rear Catalytic Converter From Front Catalytic Converter

Note. Replace the gaskets with new ones. Install in the reverse order of removal.

1. Make sure there are no exhaust leaks from connections and welds.
2. Make sure there are no holes or rusting.

Scheme 365

Scheme 366

Scheme 367

1. Disconnect the ground cable from battery.
2. Lift up the vehicle.
3. Disconnect connector (A) from drain valve.
4. Disconnect evaporation hoses (B) and (C) from canister. (Scheme 365): Identifying Evaporation Hoses And Canister
5. Disconnect quick connector (A) from canister.
6. Disconnect drain hoses (B) from canister. (Scheme 366): Identifying Quick Connector From Canister
7. Remove the canister from vehicle. (Scheme 367): Identifying Canister From Vehicle

Install in the reverse order of removal.

Note. Replace the retainer of quick connector with new one.

Tightening torque

23 N.m (2.3 kgf-m, 17 ft-lb)

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

Scheme 368

1. Disconnect the ground cable from battery.
2. Disconnect the connector and hoses from purge control solenoid valve.
3. Remove the bolt which installs the purge control solenoid valve onto intake manifold. (Scheme 368): Locating Purge Control Solenoid Valve Onto Intake Manifold

Install in the reverse order of removal.

Tightening torque

16 N.m (1.6 kgf-m, 11.6 ft-lb)

Note. Connect the evaporation hoses as shown in the figure.

Identifying Purge Valve And Intake Manifold. Scheme 369

Make sure the hoses are not cracked or loose.

Scheme 370

1. Disconnect the ground cable from battery.
2. Disconnect the connector (A) from secondary air pump.
3. Disconnect the hose (B) from secondary air pump.
4. Remove the bolt (C) which secures the secondary air pump to the vehicle. (Scheme 370): Identifying Secondary Air Pump Witch Bolt

Install in the reverse order of removal.

Tightening torque

5 N.m (0.5 kgf-m, 3.7 ft-lb)

Make sure the hoses are not cracked or loose.

Scheme 371

1. Disconnect the ground cable from battery.
2. Remove the intercooler. < Ref. to «REMOVAL»(/subaru/impreza-wrx/gdgg-2-2005-2007/remont/mechanical/#intake-induction-h4dotc-engine), Intercooler. >
3. Disconnect the connector from secondary air combi valve LH.
4. Disconnect the air duct.
5. Disconnect the pipe LH.
6. Remove the secondary air combi valve LH. (Scheme 371): Identifying Secondary Air Combi Valve LH Components

Scheme 372

1. Disconnect the ground cable from battery.
2. Remove the intercooler. < Ref. to «REMOVAL»(/subaru/impreza-wrx/gdgg-2-2005-2007/remont/mechanical/#intake-induction-h4dotc-engine), Intercooler. >
3. Remove the secondary air combi valve LH. < Ref. to «SECONDARY AIR COMBI VALVE LH»(/subaru/impreza-wrx/gdgg-2-2005-2007/remont/fuel-system/#emission-control-aux-emission-control-devices-h4dotc-engine__secondary-air-combi-valve-lh), REMOVAL, Secondary Air Combi Valve. >
4. Remove the intake manifold. < Ref. to «REMOVAL»(/subaru/impreza-wrx/gdgg-2-2005-2007/remont/fuel-system/#fuel-injection-fuel-systems-h4dotc), Intake Manifold. >
5. Disconnect the connector from secondary air combi valve RH.
6. Disconnect the pipe RH.
7. Remove the secondary air combi valve RH. (Scheme 372): Identifying Secondary Air Combi Valve RH Components

SECONDARY AIR COMBI VALVE LH

Install in the reverse order of removal.

Note. Use a new gasket.

Tightening torque

T1: 9 N.m (0.9 kgf-m, 6.6 ft-lb)

T2: 19 N.m (1.9 kgf-m, 13.7 ft-lb)

Identifying Secondary Air Combi Valve LH Installation Position. Scheme 373

SECONDARY AIR COMBI VALVE RH

Install in the reverse order of removal.

Note. Use a new gasket.

Tightening torque

T1: 9 N.m (0.9 kgf-m, 6.6 ft-lb)

T2: 19 N.m (1.9 kgf-m, 13.7 ft-lb)

Identifying Secondary Air Combi Valve RH Installation Position. Scheme 374

Make sure the hoses are not cracked or loose.

For removal procedure, < Ref. to REMOVAL , Fuel Level Sensor. >

For installation procedure, < Ref. to INSTALLATION , Fuel Level Sensor. >

Fuel temperature sensor and fuel level sensor are integrated into one unit; therefore, the removal procedure is the same as that for fuel level sensor. < Ref. to REMOVAL , Fuel Level Sensor. >

Fuel temperature sensor and fuel level sensor are integrated into one unit; therefore, the installation procedure is the same as that for fuel level sensor. < Ref. to INSTALLATION , Fuel Level Sensor. >

For removal procedure, < Ref. to REMOVAL , Fuel Sub Level Sensor. >

For installation procedure, < Ref. to INSTALLATION , Fuel Sub Level Sensor. >

Scheme 375

Scheme 376

Scheme 377

Scheme 378

1. Remove the fuel tank. < Ref. to «REMOVAL»(/subaru/impreza-wrx/gdgg-2-2005-2007/remont/fuel-system/#fuel-injection-fuel-systems-h4dotc), Fuel Tank. >
2. Remove the protector cover. (Scheme 375): Identifying Protector Cover
3. Disconnect the connector from fuel tank pressure sensor.
4. Release the clips which hold fuel pipes onto fuel tank. (Scheme 376): Identifying Hold Fuel Pipes Onto Fuel Tank
5. Remove the bolt and nut which hold the fuel tank pressure sensor onto the bracket. (Scheme 377): Identifying Hold Fuel Tank Pressure Sensor Onto Bracket
6. Disconnect the pressure hose from fuel tank pressure sensor. (Scheme 378): Identifying Pressure Hose From Fuel Tank Pressure Sensor

Install in the reverse order of removal.

Tightening torque

7.4 N.m (0.75 kgf-m, 5.4 ft-lb)

Tightening Nut. Scheme 379

Tightening torque

T: 4.4 N.m (0.45 kgf-m, 3.3 ft-lb)

Identifying Protector Cover Nut. Scheme 380

Make sure the hoses are not cracked or loose.

Scheme 381

Scheme 382

Scheme 383

Scheme 384

Scheme 385

1. Set the vehicle on a lift.
2. Disconnect the ground cable from battery.
3. Lift up the vehicle.
4. Remove the canister. < Ref. to «REMOVAL»(/subaru/impreza-wrx/gdgg-2-2005-2007/remont/fuel-system/#emission-control-aux-emission-control-devices-h4dotc-engine), Canister. >
5. Remove the bolt which installs the pressure control solenoid valve holding bracket on body. (Scheme 381): Locating Pressure Control Solenoid Valve Bolt
6. Remove the pressure control solenoid valve with bracket.
7. Disconnect the connector from pressure control solenoid valve. (Scheme 382): Identifying Connector From Pressure Control Solenoid Valve
8. Disconnect the two evaporation hoses from pressure control solenoid valve. (Scheme 383): Locating Evaporation Hoses From Pressure Control Solenoid Valve
9. Remove the pressure control solenoid valve from bracket. (Scheme 384): Identifying Pressure Control Solenoid Valve From Bracket
10. Disconnect the pressure control valve hose from pressure control solenoid valve. (Scheme 385): Identifying Pressure Control Valve Hose

Install in the reverse order of removal.

Tightening torque

25 N.m (2.6 kgf-m, 18.8 ft-lb)

Make sure the hoses are not cracked or loose.

SPECIFICATION

Drain filter is built in the canister, and it is a part which cannot be disassembled.

Scheme 386

Scheme 387

1. Remove the fuel tank. < Ref. to «REMOVAL»(/subaru/impreza-wrx/gdgg-2-2005-2007/remont/fuel-system/#fuel-injection-fuel-systems-h4dotc), Fuel Tank. >
2. Remove the protector cover. see scheme 29: Identifying Protector Cover
3. Remove the clips, and disconnect the hoses from vent valve. (Scheme 386): Identifying Hoses Clips
4. Remove the nuts and then remove the vent valve. (Scheme 387): Identifying Vent Valve Nuts

Install in the reverse order of removal.

Note. Replace the gasket with a new one.

Tightening torque

T: 4.4 N.m (0.45 kgf-m, 3.3 ft-lb)

Identifying Gasket. Scheme 388

Tightening torque

T: 4.4 N.m (0.45 kgf-m, 3.3 ft-lb)

Make sure the hoses are not cracked or loose.

Scheme 389

Scheme 390

1. Remove the fuel filler pipe. < Ref. to «REMOVAL»(/subaru/impreza-wrx/gdgg-2-2005-2007/remont/fuel-system/#fuel-injection-fuel-systems-h4dotc), Fuel Filler Pipe. >
2. Disconnect the evaporation hoses from shut valve. (Scheme 389): Identifying Evaporation Hoses From Shut Valve
3. Remove the shut valve from fuel filler pipe. (Scheme 390): Locating Shut Valve Nuts

Install in the reverse order of removal.

Tightening torque

4.5 N.m (0.46 kgf-m, 3.3 ft-lb)

Tightening Shut Valve Nuts. Scheme 391

Make sure the hoses are not cracked or loose.

Scheme 392

1. Set the vehicle on the lift.
2. Disconnect the ground cable from battery.
3. Lift up the vehicle.
4. Remove the canister. < Ref. to «REMOVAL»(/subaru/impreza-wrx/gdgg-2-2005-2007/remont/fuel-system/#emission-control-aux-emission-control-devices-h4dotc-engine), Canister. >
5. Remove clip (A), and then remove drain valve (B) from canister.
6. Remove the filter from drain valve (B). (Scheme 392): Identifying Drain Valve And Clip

Install in the reverse order of removal.

1. Make sure that all hoses are installed securely.
2. Make sure that hoses are not cracked or loose.

Scheme 393

1. Remove the intake manifold. < Ref. to «REMOVAL»(/subaru/impreza-wrx/gdgg-2-2005-2007/remont/fuel-system/#fuel-injection-fuel-systems-h4dotc), Intake Manifold. >
2. Clip the protrusion of clamp after aligning the concave portion of ST with protrusion of clamp, and then unlock the lock.
3. Remove the PCV hose assembly. ST 18353AA000 CLAMP PLIERS (Scheme 393): Removing PCV Hose Assembly Using ST Clamp Pliers 18353AA000

Note. Replace the clamp with a new one.

Scheme 394

1. Install the PCV hose assembly, and then lock the clamp with protrusion of clamp clipped by pliers. ST 18353AA000 CLAMP PLIERS (Scheme 394): Installing PCV Hose Assembly Using ST Clamp Pliers
2. Install the intake manifold. < Ref. to «INSTALLATION»(/subaru/impreza-wrx/gdgg-2-2005-2007/remont/fuel-system/#fuel-injection-fuel-systems-h4dotc), Intake Manifold. >

See also:
• REMOVAL
• REMOVAL
• REMOVAL
• SECONDARY AIR COMBI VALVE LH
• REMOVAL