Manual sections

• Abbreviations
• Airbag
• Anti-Lock/traction Control
• Automatic HVAC System
• Automatic Trans
• Automatic Transmission (4at)
• Auxiliary Emission Control Systems
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• Basic Trouble Shooting
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• Brakes
• Cabin Air Filter
• Charging System
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• Clutches Manual & Hydraulic
• Communication Devices
• Cooling Fan
• Cruise Control Systems
• Diagnostic Connector Locations
• Diagnostic Trouble Code (DTC) Detecting Criteria (h4dotc)
• Diagnostic Trouble Code (DTC) Detecting Criteria (h4so)
• Differentials & Drive Axles
• Door Locks & Anti-Theft Systems
• Drive Cycles
• Driveline/axles
• DTC Index
• Electrical Component Locations
• Emission Applications
• Engine
• Engine Control Systems
• Engine Controls - Engine (diagnostics) (h4so)
• Engine Mechanical (h4dotc)
• Engine Mechanical (h4so)
• Engine Performance
• Entertainment Systems
• Exhaust
• Exterior Body Panels
• Exterior Lights
• Exterior Trim & Interior Trim
• Exterior/interior Trim
• Fuel Injection System (h4dotc)
• Fuel Injection System (h4so)
• Fuel System
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• General Information
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• MAP Guidelines
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• Mode 6
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• Reset Procedures
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• Suspension Front
• Suspension Rear
• Testing & Diagnostics
• Traction Control Disable
• Transfer Case
• Transmission
• Warning System
• Wheel & Tire System
• Wiper/washer Systems

Repair manual

Engine Controls - Engine (diagnostics) (h4so) Subaru Impreza WRX GH

Step-by-step instructions on "Engine Controls - Engine (diagnostics) (h4so)" for Subaru Impreza WRX GH (2007–2010). Pick an article — removal, installation, adjustment and diagnostics with illustrations.

71subsections

71articles

118illustrations

General information

1 article

• General information

CHECK LIST NO. 1

1 article

• CHECK LIST NO. 1 1

CHECK LIST NO. 2

1 article

• CHECK LIST NO. 2 3

INSPECTION

1 article

• INSPECTION

BATTERY

1 article

• BATTERY

ENGINE GROUND

1 article

• ENGINE GROUND 1

GENERAL DESCRIPTION

1 article

• GENERAL DESCRIPTION

ENGINE AND EMISSION CONTROL SYSTEM

1 article

• ENGINE AND EMISSION CONTROL SYSTEM

PREPARATION TOOL

1 article

• PREPARATION TOOL 23

ELECTRICAL SPECIFICATION

1 article

• ELECTRICAL SPECIFICATION

NOTE

1 article

• NOTE 2

MODE $01: (CURRENT POWERTRAIN DIAGNOSTIC DATA)

1 article

• MODE $01: (CURRENT POWERTRAIN DIAGNOSTIC DATA)

MODE $02 (POWERTRAIN FREEZE FRAME DATA)

1 article

• MODE $02 (POWERTRAIN FREEZE FRAME DATA)

MODE $03 (EMISSION-RELATED POWERTRAIN DTC)

1 article

• MODE $03 (EMISSION-RELATED POWERTRAIN DTC)

MODE $04 (CLEAR/RESET EMISSION-RELATED DIAGNOSTIC INFORMATION)

1 article

• MODE $04 (CLEAR/RESET EMISSION-RELATED DIAGNOSTIC INFORMATION)

MODE $06

1 article

• MODE $06

MODE $07

1 article

• MODE $07

MODE $09

1 article

• MODE $09 2

READ DIAGNOSTIC TROUBLE CODE (DTC) FOR ENGINE (NORMAL MODE)

1 article

• READ DIAGNOSTIC TROUBLE CODE (DTC) FOR ENGINE (NORMAL MODE)

READ DIAGNOSTIC TROUBLE CODE (DTC) FOR ENGINE (OBD MODE)

1 article

• READ DIAGNOSTIC TROUBLE CODE (DTC) FOR ENGINE (OBD MODE)

READ CURRENT DATA FOR ENGINE (NORMAL MODE)

1 article

• READ CURRENT DATA FOR ENGINE (NORMAL MODE)

READ CURRENT DATA FOR ENGINE (OBD MODE)

1 article

• READ CURRENT DATA FOR ENGINE (OBD MODE)

READ FREEZE FRAME DATA FOR ENGINE (OBD MODE)

1 article

• READ FREEZE FRAME DATA FOR ENGINE (OBD MODE)

V.I.N REGISTRATION

1 article

• V.I.N REGISTRATION

SUBARU SELECT MONITOR (NORMAL MODE)

1 article

• SUBARU SELECT MONITOR (NORMAL MODE)

SUBARU SELECT MONITOR (OBD MODE)

1 article

• SUBARU SELECT MONITOR (OBD MODE)

GENERAL SCAN TOOL

1 article

• GENERAL SCAN TOOL

PROCEDURE

1 article

• PROCEDURE

PREPARATION FOR THE INSPECTION MODE

1 article

• PREPARATION FOR THE INSPECTION MODE 6

PREPARATION FOR DRIVE CYCLE

1 article

• PREPARATION FOR DRIVE CYCLE

DRIVE CYCLE A - DRIVE THE VEHICLE WITH 80 KM/H (50 MPH) FOR 20 MINUTES, AND THEN IDLE THE ENGINE FOR A MINUTE

1 article

• DRIVE CYCLE A - DRIVE THE VEHICLE WITH 80 KM/H (50 MPH) FOR 20 MINUTES, AND THEN IDLE THE ENGINE FOR A MINUTE

DRIVE CYCLE B - 10 MINUTES IDLING

1 article

• DRIVE CYCLE B - 10 MINUTES IDLING 1

DRIVE CYCLED

1 article

• DRIVE CYCLED

DRIVE CYCLE E

1 article

• DRIVE CYCLE E

DRIVE CYCLE F

1 article

• DRIVE CYCLE F

DRIVE CYCLE H

1 article

• DRIVE CYCLE H 5

FUEL PUMP CONTROL (OFF DRIVE)

1 article

• FUEL PUMP CONTROL (OFF DRIVE)

FUEL PUMP CONTROL (ON/OFF DRIVE)

1 article

• FUEL PUMP CONTROL (ON/OFF DRIVE)

IDLING IGNITION TIMING FIXED

1 article

• IDLING IGNITION TIMING FIXED

IDLE SPEED CONTROL

1 article

• IDLE SPEED CONTROL

INJECTOR CONTROL. (INJECTION STOP MODE)

1 article

• INJECTOR CONTROL. (INJECTION STOP MODE)

INJECTOR CONTROL. (INJECTION QUANTITY CONTROL)

1 article

• INJECTOR CONTROL. (INJECTION QUANTITY CONTROL)

EGR VALVE CONTROL

1 article

• EGR VALVE CONTROL 3

DIAGNOSIS

1 article

• DIAGNOSIS

TROUBLE SYMPTOM

1 article

• TROUBLE SYMPTOM 4

STARTER MOTOR CIRCUIT

1 article

• STARTER MOTOR CIRCUIT 1

CHECK POWER SUPPLY AND GROUND LINE OF ENGINE CONTROL MODULE (ECM)

1 article

• CHECK POWER SUPPLY AND GROUND LINE OF ENGINE CONTROL MODULE (ECM) 1

IGNITION CONTROL SYSTEM

1 article

• IGNITION CONTROL SYSTEM 1

FUEL PUMP CIRCUIT

1 article

• FUEL PUMP CIRCUIT 1

FUEL INJECTOR CIRCUIT

1 article

• FUEL INJECTOR CIRCUIT 1

LIST

1 article

• LIST

DTC DETECTING CONDITION

1 article

• DTC DETECTING CONDITION 33

DTC P0171 SYSTEM TOO LEAN (BANK 1)

1 article

• DTC P0171 SYSTEM TOO LEAN (BANK 1) 8

DTC P0301 CYLINDER 1 MISFIRE DETECTED

1 article

• DTC P0301 CYLINDER 1 MISFIRE DETECTED

DTC P0302 CYLINDER 2 MISFIRE DETECTED

1 article

• DTC P0302 CYLINDER 2 MISFIRE DETECTED

DTC P0303 CYLINDER 3 MISFIRE DETECTED

1 article

• DTC P0303 CYLINDER 3 MISFIRE DETECTED 13

WIRING DIAGRAM

1 article

• WIRING DIAGRAM 2

DTC P0462 FUEL LEVEL SENSOR "A" CIRCUIT LOW

1 article

• DTC P0462 FUEL LEVEL SENSOR "A" CIRCUIT LOW

DTC P0600 SERIAL COMMUNICATION LINK

1 article

• DTC P0600 SERIAL COMMUNICATION LINK

DTC P0605 INTERNAL CONTROL MODULE READ ONLY MEMORY (ROM) ERROR

1 article

• DTC P0605 INTERNAL CONTROL MODULE READ ONLY MEMORY (ROM) ERROR 1

DTC P0638 THROTTLE ACTUATOR CONTROL RANGE/PERFORMANCE (BANK 1)

1 article

• DTC P0638 THROTTLE ACTUATOR CONTROL RANGE/PERFORMANCE (BANK 1)

DTC P0700 TRANSMISSION CONTROL SYSTEM (MIL REQUEST)

1 article

• DTC P0700 TRANSMISSION CONTROL SYSTEM (MIL REQUEST) 1

DTC P1160 RETURN SPRING FAILURE

1 article

• DTC P1160 RETURN SPRING FAILURE 2

DTC P1492 EGR SOLENOID VALVE SIGNAL #1 CIRCUIT MALFUNCTION (LOW INPUT)

1 article

• DTC P1492 EGR SOLENOID VALVE SIGNAL #1 CIRCUIT MALFUNCTION (LOW INPUT)

DTC P1493 EGR SOLENOID VALVE SIGNAL #1 CIRCUIT MALFUNCTION (HIGH INPUT)

1 article

• DTC P1493 EGR SOLENOID VALVE SIGNAL #1 CIRCUIT MALFUNCTION (HIGH INPUT)

DTC P1494 EGR SOLENOID VALVE SIGNAL #2 CIRCUIT MALFUNCTION (LOW INPUT)

1 article

• DTC P1494 EGR SOLENOID VALVE SIGNAL #2 CIRCUIT MALFUNCTION (LOW INPUT)

DTC P1495 EGR SOLENOID VALVE SIGNAL #2 CIRCUIT MALFUNCTION (HIGH INPUT)

1 article

• DTC P1495 EGR SOLENOID VALVE SIGNAL #2 CIRCUIT MALFUNCTION (HIGH INPUT)

DTC P1496 EGR SOLENOID VALVE SIGNAL #3 CIRCUIT MALFUNCTION (LOW INPUT)

1 article

• DTC P1496 EGR SOLENOID VALVE SIGNAL #3 CIRCUIT MALFUNCTION (LOW INPUT)

DTC P1497 EGR SOLENOID VALVE SIGNAL #3 CIRCUIT MALFUNCTION (HIGH INPUT)

1 article

• DTC P1497 EGR SOLENOID VALVE SIGNAL #3 CIRCUIT MALFUNCTION (HIGH INPUT)

DTC P2096 POST CATALYST FUEL TRIM SYSTEM TOO LEAN BANK 1

1 article

• DTC P2096 POST CATALYST FUEL TRIM SYSTEM TOO LEAN BANK 1 1

DTC P2109 THROTTLE/PEDAL POSITION SENSOR "A" MINIMUM STOP PERFORMANCE

1 article

• DTC P2109 THROTTLE/PEDAL POSITION SENSOR "A" MINIMUM STOP PERFORMANCE 1