FU(H4SO)-13
FUEL INJECTION (FUEL SYSTEM)
Throttle Body
2. Throttle Body
A: REMOVAL
1) Disconnect the ground cable from battery.
2) Remove the air cleaner case.
3) Disconnect the accelerator cable (A).
4) Disconnect the cruise control cable (B). (With
cruise control model)
5) Disconnect the connectors from idle air control
solenoid valve, throttle position sensor and mani-
fold absolute pressure sensor.
6) Disconnect the engine coolant hoses (A) from
the throttle body.7) Remove the bolts (B) which install throttle body
to the intake manifold.
B: INSTALLATION
1) Install in the reverse order of removal.
NOTE:
Replace the gasket with a new one.
Tightening torque:
THROTTLE BODY;
22 N
⋅m (2.2 kgf-m, 15.9 ft-lb)
2) Adjust the accelerator cable play.
(A) Throttle position sensor
(B) Manifold absolute pressure sensor
(C) Idle air control solenoid valve
FU-00009
FU-00251
(B)
(A)
FU-00378
(B)
(A)(C)
FU-00253
(B)
(B)
(A)(A)
FU(H4SO)-14
FUEL INJECTION (FUEL SYSTEM)
Intake Manifold
3. Intake Manifold
A: REMOVAL
1) Release the fuel pressure.
TION, Fuel.>
2) Open the fuel flap lid, and remove the fuel filler
cap.
3) Disconnect the ground cable from battery.
4) Remove the air intake duct and air cleaner case.
5) Disconnect the accelerator cable (A).
6) Disconnect the cruise control cable (B). (With
cruise control model)
7) Remove the power steering pump and reservoir
tank from bracket.
(1) Remove the resonator chamber.
(2) Remove the front side V-belt.
pipes onto the intake manifold protector.
NOTE:
Do not disconnect the power steering hose.
(4) Remove the bolts which install power steer-
ing pump bracket.
(5) Disconnect the connector from the power
steering pump switch.
(6) Remove the power steering tank from the
bracket by pulling it upwards.
FU-00009
FU-00251
(B)
(A)
FU-00255
FU-00139
FU-00017
FU-00020
FU(H4SO)-19
FUEL INJECTION (FUEL SYSTEM)
Intake Manifold
(6) Install the resonator chamber.
Tightening torque:
33 N
⋅m (3.4 kgf-m, 24.3 ft-lb)
15) Connect the accelerator cable (A).
Cable.>
16) Connect the cruise control cable (B). (With cruise
control models)
17) Install the air intake duct and air cleaner case.
18) Connect the connector to the fuel pump relay.19) Connect the battery ground cable to battery.
C: DISASSEMBLY
1) Disconnect the engine ground terminal from the
intake manifold.
2) Disconnect the connector from the ignition coil &
ignitor assembly.
3) Remove the ignition coil & ignitor assembly.
4) Remove the throttle body.
5) Remove the EGR valve.
FU-00251
(B)
(A)
FU-00262
FU-00009
FU-00263
FU-00264
FU-00286
ME(H4SO)-35
MECHANICAL
Engine Assembly
(4) Engine harness connectors
(5) Generator connector, terminal and A/C
compressor connector
(6) Accelerator cable (A) and cruise control ca-
ble (B)(7) Pressure switch
12) Disconnect the following hoses.
(1) Brake booster vacuum hose
(2) Heater inlet and outlet hose
(3) Heater inlet and outlet hose (with ATF
warmer model)
13) Remove the power steering pump from brack-
et.
(1) Remove the resonator chamber.
(A) Generator connector and terminal
(B) A/C compressor connector
ME-00207
ME-00208
(A)
(B)
(B)(A)
ME-00328
FU-00017
ME-00329
ME-00330
ME-02009
ME(H4SO)-40
MECHANICAL
Engine Assembly
11) Tighten the nuts which hold lower side of trans-
mission to engine.
Tightening torque:
50 N
⋅m (5.1 kgf-m, 36.9 ft-lb)
12) Tighten the nuts which install front cushion rub-
ber onto crossmember.
Tightening torque:
85 N
⋅m (8.7 kgf-m, 63 ft-lb)
NOTE:
Make sure the front cushion rubber mounting bolts
(A) and locator (B) are securely installed.
13) Install the front and center exhaust pipe.
Pipe.>
14) Connect the following hoses.
(1) Fuel delivery hose, return hose and evapo-
ration hose
(2) Heater inlet and outlet hoses
(3) Brake booster vacuum hose
15) Connect the following connectors.
(1) Engine ground cables
Tightening torque:
14 N
⋅m (1.4 kgf-m, 10.1 ft-lb)
(2) Engine harness connectors
(3) Generator connector and terminal
(4) A/C compressor connectors
(5) Power steering pressure switch
16) Connect the following cables.
(1) Accelerator cable
(2) Cruise control cable (With cruise control)
17) Adjust each connected cable.18) Install the air cleaner case stay.
Tightening torque:
16 N
⋅m (1.6 kgf-m, 11.6 ft-lb)
19) Install the A/C pressure hoses.
20) Install the radiator to vehicle.
21) Install the air intake duct and air cleaner case.
22) Install the under cover.
23) Install battery in the vehicle, and then connect
the cables.
24) Fill engine coolant.
25) Check the ATF level and correct if necessary.
(AT model)
26) Charge the A/C system with refrigerant.
cedure.>
27) Remove the front hood stay, and then close the
front hood.
28) Take off the vehicle from lift arms.
C: INSPECTION
1) Make sure the pipes and hoses are installed cor-
rectly.
2) Make sure the engine coolant and ATF are at
specified levels.
ME-00219
ME-00056
(A)
(A)(B)
(B)
EN(H4SO)-35
ENGINE (DIAGNOSTIC)
Subaru Select Monitor
8. READ CURRENT DATA FOR AT
1) On the «Main Menu» display screen, select the {Each System Check} and press the [YES] key.
2) On the «System Selection Menu» display screen, select the {Transmission} and press the [YES] key.
3) Press the [YES] key after the information of transmission type is displayed.
4) On the «Transmission Diagnosis» display screen, select the {Current Data Display & Save} and press the
[YES] key.
5) On the «Transmission Diagnosis» display screen, select the {Data Display} and press the [YES] key.
6) Using the scroll key, scroll the display screen up or down until the desired data is shown.
A list of the support data is shown in the following table.
Description Display Unit of measure
Battery voltage Battery Voltage V
Rear vehicle speed sensor signal Rear Wheel Speed km/h or MPH
Front vehicle speed sensor signal Front Wheel Speed km/h or MPH
Engine speed signal Engine speed rpm
ATF temperature signal ATF Temp.°C or °F
Throttle position sensor Throttle Sensor Voltage V
Gear Position Gear position —
Line pressure control duty ratio Line pressure duty %
Lock up clutch control duty ratio L/U Duty %
Transfer clutch control duty ratio AWD duty %
Throttle position sensor power supply Throttle sensor power supply V
Turbine revolution signal Turbine Revolution Speed rpm
2-4 Brake timing pressure control duty ratio 2-4 B Pressure Duty %
Intake manifold pressure sensor voltage Mani. Relative Voltage V
FWD switch signal FWD SW ON or OFF
Kick down switch signal Kick Down Switch ON or OFF
Stop light switch signal Stop Light SW ON or OFF
Anti lock brake system signal ABS signal ON or OFF
Cruise control system signal Cruise Control Signal ON or OFF
Neutral/Parking range signal N/P range ON or OFF
Reverse range signal R Range ON or OFF
Drive range signal D Range ON or OFF
3rd range signal 3rd Range Signal ON or OFF
2nd range signal 2nd Range Signal ON or OFF
1st range signal 1st Range Signal ON or OFF
Shift control solenoid A Shift Solenoid #1 ON or OFF
Shift control solenoid B Shift Solenoid #2 ON or OFF
Torque control output signal #1 Torque control output signal 1 ON or OFF
Torque control output signal #2 Torque control output signal 2 ON or OFF
Torque control cut signal Torque Control Cut Sig ON or OFF
2-4 brake timing control solenoid valve 2-4B Timing Solenoid ON or OFF
Low clutch timing control solenoid valve L/C timing solenoid ON or OFF
Automatic transmission diagnosis light output signal Diagnosis Lamp ON or OFF
EN(H4SO)-37
ENGINE (DIAGNOSTIC)
Inspection Mode
12.Inspection Mode
A: OPERATION
Perform the diagnosis on the “Diagnosis Trouble Codes (DTC) List” below.
Refer to the item of drive cycle when perform the diagnosis not on the “Diagnosis Trouble Codes (DTC) List”
below.
DTC Item
P0030 HO2S Heater Control Circuit (Bank 1 Sensor 1)
P0031 HO2S Heater Control Circuit Low (Bank 1 Sensor 1)
P0032 HO2S Heater Control Circuit High (Bank 1 Sensor 1)
P0037 HO2S Heater Control Circuit Low (Bank 1 Sensor 2)
P0038 HO2S Heater Control Circuit High (Bank 1 Sensor 2)
P0068 Manifold Pressure Sensor Range/Performance
P0107 Manifold Absolute Pressure/Barometric Pressure Circuit Low Input
P0108 Manifold Absolute Pressure/Barometric Pressure Circuit High Input
P0112 Intake Air Temperature Circuit Low Input
P0113 Intake Air Temperature Circuit High Input
P0117 Engine Coolant Temperature Circuit Low Input
P0118 Engine Coolant Temperature Circuit High Input
P0122 Throttle/Pedal Position Sensor/Switch “A” Circuit Low Input
P0123 Throttle/Pedal Position Sensor/Switch “A” Circuit High Input
P0129 Barometric Pressure Too Low
P0131 O
2 Sensor Circuit Low Voltage (Bank 1 Sensor 1)
P0132 O
2 Sensor Circuit High Voltage (Bank 1 Sensor 1)
P0134 O
2 Sensor Circuit No Activity Detected (Bank 1 Sensor 1)
P0137 O
2 Sensor Circuit Low Voltage (Bank 1 Sensor 2)
P0138 O
2 Sensor Circuit High Voltage (Bank 1 Sensor 2)
P0327 Knock Sensor 1 Circuit Low Input (Bank 1 or Single Sensor)
P0328 Knock Sensor 1 Circuit High Input (Bank 1 or Single Sensor)
P0335 Crankshaft Position Sensor “A” Circuit
P0336 Crankshaft Position Sensor “A” Circuit Range/Performance
P0340 Camshaft Position Sensor “A” Circuit (Bank 1 or Single Sensor)
P0341 Camshaft Position Sensor “A” Circuit Range/Performance (Bank 1 or Single Sensor)
P0458 Evaporative Emission Control System Purge Control Valve Circuit Low
P0462 Fuel Level Sensor Circuit Low Input
P0463 Fuel Level Sensor Circuit High Input
P0502 Vehicle Speed Sensor Circuit Low Input
P0503 Vehicle Speed Sensor Intermittent/Erratic/High
P0512 Starter Request Circuit
P0513 Incorrect Immobilizer Key
P0519 Idle Control System Malfunction (Fail-Safe)
P0565 Cruise Control On Signal
P0604 Internal Control Module Random Access Memory (RAM) Error
P0703 Torque Converter/Brake Switch “B” Circuit
P0705 Transmission Range Sensor Circuit (PRNDL Input)
P0710 Transmission Fluid Temperature Sensor Circuit
P0716 Torque converter turbine speed sensor
P0720 AT Vehicle Speed Sensor Circuit Malfunction
P0726 Engine Speed Input Circuit Malfunction
P0731 Gear 1 Incorrect Ratio
P0732 Gear 2 Incorrect Ratio
P0733 Gear 3 Incorrect Ratio
EN(H4SO)-74
ENGINE (DIAGNOSTIC)
List of Diagnostic Trouble Code (DTC)
P0420 Catalyst System Efficiency Below
Threshold (Bank 1)
Trouble Code (DTC).>
P0458 Evaporative Emission Control Sys-
tem Purge Control Valve Circuit Low
cedure with Diagnostic Trouble Code (DTC).>
P0459 Evaporative Emission Control Sys-
tem Purge Control Valve Circuit High
Procedure with Diagnostic Trouble Code (DTC).>
P0461 Fuel Level Sensor Circuit Range/Per-
formance
Code (DTC).>
P0462 Fuel Level Sensor Circuit Low Input
P0463 Fuel Level Sensor Circuit High Input
P0464 Fuel Level Sensor Circuit Intermittent
(DTC).>
P0483 Cooling Fan Rationality Check
P0502 Vehicle Speed Sensor Circuit Low
Input
P0503 Vehicle Speed Sensor Intermittent/
Erratic/High
P0506 Idle Control System RPM Lower
Than Expected
Code (DTC).>
P0507 Idle Control System RPM Higher
Than Expected
Code (DTC).>
P0512 Starter Request Circuit
P0513 Incorrect Immobilizer Key
P0519 Idle Control System Malfunction
(Fail-Safe)
(DTC).>
P0565 Cruise Control On Signal
P0604 Internal Control Module Random
Access Memory (RAM) Error
nostic Trouble Code (DTC).>
P0691 Cooling Fan 1 Control Circuit Low
P0692 Cooling Fan 1 Control Circuit High
P0703 Torque Converter/Brake Switch “B”
Circuit
(DTC).>
P0705 Transmission Range Sensor Circuit
(PRNDL Input)
P0710 Transmission Fluid Temperature
Sensor Circuit
P0716 Torque converter turbine speed sen-
sor