Impreza F4-2.5L SOHC (2003): Powertrain Management
Also for this vehicle: Impreza 2.5 RS Coupe AWD F4-2.5L SOHC (2001), Impreza 2.5 RS Coupe F4-2.5L SOHC (2000), Impreza 2.5 RS Sedan AWD F4-2.5L SOHC (2002), Impreza Brighton Coupe AWD F4-2.2L SOHC (1997), Impreza Coupe AWD F4-1820cc 1.8L SOHC (1995), Impreza Coupe FWD F4-1820cc 1.8L SOHC (1995), Impreza F4-2.5L (2008), Impreza GT F4-2.5L Turbo (2009), Impreza L Coupe AWD F4-2.2L SOHC (2001), Impreza L Coupe F4-2.2L SOHC (1999), Impreza L Sedan F4-2.2L SOHC (1997), Impreza L Sport Wagon AWD F4-2.2L SOHC (2001), Impreza L Sport Wagon F4-2.2L SOHC (1999), Impreza Outback Sport AWD F4-2.5L SOHC (2002), Impreza RS Coupe AWD F4-2.5L DOHC (1998), Impreza RS Coupe AWD F4-2.5L SOHC (1999), Impreza Sedan AWD F4-1820cc 1.8L SOHC (1993), Impreza Sedan FWD F4-1820cc 1.8L SOHC (1995), Impreza Wagon AWD F4-1820cc 1.8L SOHC (1993), Impreza Wagon AWD F4-2.2L SOHC (1996), Impreza Wagon FWD F4-1820cc 1.8L SOHC (1995), Impreza WRX F4-2.0L DOHC Turbo (2004), Impreza WRX F4-2.5L DOHC Turbo (2006), Impreza WRX STI F4-2.5L DOHC Turbo (2007), Impreza WRX STI F4-2.5L Turbo (2008), Impreza WRX Wagon F4-2.0L DOHC Turbo (2002).
Diagnostics
Maintenance
Engine
Transmission
Brakes
Electrical
Steering & suspension
Heating & A/C
Body & interior
Choose Sections to see everything in a chapter, or a chapter title to start at its first page.
Relays and Modules - Powertrain Management15 pages
Relays and Modules - Computers and Control Systems7 pages
Engine Control Module › Component Information4 pages
- Fuel Cut Control Unit › Component Information › Service and Repair
- Main Relay (Computer/Fuel System) › Component Information › Locations2
Relays and Modules - Fuel Delivery and Air Induction4 pages
- Relays and Modules - Ignition System › Ignition Control Module › Component Information › Locations234
Sensors and Switches - Powertrain Management96 pages
Sensors and Switches - Computers and Control Systems72 pages
- Camshaft Position Sensor › Component Information › Locations2345
- Coolant Temperature Sensor/Switch (For Computer) › Component Information › Locations23
- Crankshaft Position Sensor › Component Information › Locations234
Fuel Level Sensor › Component Information9 pages
- Fuel Tank Pressure Sensor › Component Information › Locations234
- Intake Air Temperature Sensor › Component Information › Locations23
- Knock Sensor › Component Information › Locations2345
Manifold Pressure/Vacuum Sensor › Component Information3 pages
- Throttle Position Sensor › Component Information › Locations234567
- Transmission Position Switch/Sensor, A/T › Component Information › Testing and Inspection2
- Vehicle Speed Sensor › Component Information › Locations23
Sensors and Switches - Fuel Delivery and Air Induction9 pages
Tune-up and Engine Performance Checks30 pages
- Fuel Pressure › System Information › Specifications2
- Idle Speed › System Information › Specifications2
- Air Cleaner Housing › Air Filter Element › Component Information › Testing and Inspection23
- Fuel Filter › Fuel Pressure Release › System Information › Service Precautions2
- Firing Order › Component Information › Specifications
- Ignition Timing › Number One Cylinder › Component Information › Locations
Ignition Cable › Component Information › Technical Service Bulletins6 pages
Spark Plug › Component Information6 pages
- Compression Check › System Information › Specifications › Mechanical Specifications2
- Valve Clearance › System Information › Specifications2345
Computers and Control Systems167 pages
- Intake Air Temperature Sensor › Component Information › Locations23
- Camshaft Position Sensor › Component Information › Locations2345
- Coolant Temperature Sensor/Switch (For Computer) › Component Information › Locations23
- Crankshaft Position Sensor › Component Information › Locations234
- Data Link Connector › Component Information › Locations23
Engine Control Module › Component Information4 pages
- Fuel Cut Control Unit › Component Information › Service and Repair
Fuel Level Sensor › Component Information9 pages
- Fuel Tank Pressure Sensor › Component Information › Locations234
Idle Speed/Throttle Actuator - Electronic › Component Information4 pages
- Information Bus › Component Information › Tools and Equipment
- Knock Sensor › Component Information › Locations2345
- Main Relay (Computer/Fuel System) › Component Information › Locations2
- Malfunction Indicator Lamp › Component Information › Description and Operation
Manifold Pressure/Vacuum Sensor › Component Information3 pages
Relays and Modules - Computers and Control Systems7 pages
Engine Control Module › Component Information4 pages
- Fuel Cut Control Unit › Component Information › Service and Repair
- Main Relay (Computer/Fuel System) › Component Information › Locations2
Sensors and Switches - Computers and Control Systems72 pages
- Camshaft Position Sensor › Component Information › Locations2345
- Coolant Temperature Sensor/Switch (For Computer) › Component Information › Locations23
- Crankshaft Position Sensor › Component Information › Locations234
Fuel Level Sensor › Component Information9 pages
- Fuel Tank Pressure Sensor › Component Information › Locations234
- Intake Air Temperature Sensor › Component Information › Locations23
- Knock Sensor › Component Information › Locations2345
Manifold Pressure/Vacuum Sensor › Component Information3 pages
- Throttle Position Sensor › Component Information › Locations234567
- Transmission Position Switch/Sensor, A/T › Component Information › Testing and Inspection2
- Vehicle Speed Sensor › Component Information › Locations23
- Throttle Position Sensor › Component Information › Locations234567
- Transmission Position Switch/Sensor, A/T › Component Information › Testing and Inspection2
- Vehicle Speed Sensor › Component Information › Locations23
Emission Control Systems40 pages
Air Injection › Air Injection Control Valve › Component Information4 pages
Catalytic Converter › Component Information6 pages
Evaporative Emissions System28 pages
- Evaporative Canister Filter › Component Information › Locations2345
- Evaporative Check Valve › Component Information › Description and Operation › Fuel Cut Valve2
- Evaporative Emission Control Canister › Canister Vent Valve › Component Information › Locations2345
- Evaporative Shut Valve › Component Information › Description and Operation23
- Leak Detection Solenoid, Evaporative System › Component Information › Locations2345
- Refueling Vapor Recovery System › System Information › Description and Operation2
- Exhaust Gas Recirculation › System Information › Description and Operation
- Positive Crankcase Ventilation › Positive Crankcase Ventilation Valve › Component Information › Locations
Fuel Delivery and Air Induction106 pages
- Fuel Pressure › System Information › Specifications2
- Fuel Pressure Release › System Information › Service Precautions2
- Idle Speed › System Information › Specifications2
Accelerator Pedal › Component Information7 pages
- Air Cleaner Housing › Air Filter Element › Component Information › Testing and Inspection23
- Fuel › Component Information › Specifications
- Fuel Boost Pump / Fuel Transfer Pump › Component Information › Description and Operation
- Fuel Filler Cap › Component Information › Description and Operation
- Fuel Filter › Fuel Pressure Release › System Information › Service Precautions2
- Fuel Injector › Component Information › Specifications › Electrical Specifications2
- Fuel Pressure Regulator › Component Information › Description and Operation2
- Fuel Pressure Pulsation Damper › Component Information › Service and Repair
- Fuel Return Line › Component Information › Testing and Inspection2345
- Fuel Supply Line › Component Information › Testing and Inspection2345
- Fuel Tank Cut Valve › Component Information › Locations234
- Fuel Temperature Sensor › Component Information › Locations2
Idle Speed/Throttle Actuator - Electronic › Component Information4 pages
- Intake Air Duct › Component Information › Diagrams23456
- Main Relay (Computer/Fuel System) › Component Information › Locations2
Relays and Modules - Fuel Delivery and Air Induction4 pages
- Resonator, Intake Air › Component Information › Testing and Inspection23
Sensors and Switches - Fuel Delivery and Air Induction9 pages
Throttle Body › Component Information4 pages
- Throttle Cable/Linkage › Component Information › Testing and Inspection2
- Throttle Position Sensor › Component Information › Locations234567
Ignition System64 pages
- Firing Order › Component Information › Specifications
- Ignition Timing › Number One Cylinder › Component Information › Locations
- Camshaft Position Sensor › Component Information › Locations2345
Ignition Coil Wire › Component Information › Technical Service Bulletins6 pages
- Crankshaft Position Sensor › Component Information › Locations234
Ignition Cable › Component Information › Technical Service Bulletins7 pages
- Customer Interest: › 07-60-07R › Apr › 07 › Ignition System - DTC's P0301/P0302/P0303/P030423
- All Technical Service Bulletins: › 07-60-07R › Apr › 07 › Ignition System - DTC's P0301/P0302/P0303/P030423
- All Other Service Bulletins for Ignition Cable: › NHTSA04V128000 › Mar › 04 › Recall 04V128000: Cruise Control Cable/Throttle Sticking
- All Other Service Bulletins for Ignition Cable: › NHTSA04V128000 › Mar › 04 › Recall 04V128000: Cruise Control Cable/Throttle Sticking
Ignition Coil › Component Information › Technical Service Bulletins6 pages
- Ignition Control Module › Component Information › Locations234
- Knock Sensor › Component Information › Locations2345
- Relays and Modules - Ignition System › Ignition Control Module › Component Information › Locations234
Spark Plug › Component Information6 pages
Transmission Control Systems42 pages
Actuators and Solenoids - Transmission and Drivetrain › Actuators and Solenoids - A/T14 pages
Relays and Modules - Transmission and Drivetrain › Relays and Modules - A/T4 pages
Sensors and Switches - Transmission and Drivetrain24 pages
Sensors and Switches - A/T19 pages
- Shift Interlock Switch › Component Information › Locations2
- Throttle Position Sensor/Switch, A/T › Component Information › Locations2
- Transmission Position Switch/Sensor, A/T › Component Information › Testing and Inspection2
- Transmission Temperature Sensor/Switch, A/T › Component Information › Locations2345
Sensors and Switches - M/T5 pages