Subaru IMPREZA 2004 Service Manual page 611

FUEL INJECTION (FUEL SYSTEMS)
FU(H4SOw/oOBD)
1. General Description ....................................................................................2
2. Throttle Body.............................................................................................15
3. Intake Manifold..........................................................................................16
4. Engine Coolant Temperature Sensor........................................................28
5. Crankshaft Position Sensor.......................................................................29
6. Camshaft Position Sensor.........................................................................30
7. Knock Sensor............................................................................................31
8. Throttle Position Sensor............................................................................32
9. Intake Air Temperature and Manifold Absolute Pressure Sensor .............34
10. Idle Air Control Solenoid Valve .................................................................35
11. Fuel Injector ..............................................................................................36
12. Oxygen Sensor .........................................................................................41
13. Engine Control Module (ECM) ..................................................................43
14. Main Relay ................................................................................................44
15. Fuel Pump Relay.......................................................................................45
16. Fuel ...........................................................................................................46
17. Fuel Tank ..................................................................................................47
18. Fuel Filler Pipe ..........................................................................................50
19. Fuel Pump.................................................................................................54
20. Fuel Level Sensor .....................................................................................57
21. Fuel Sub Level Sensor..............................................................................58
22. Fuel Filter ..................................................................................................59
23. Fuel Cut Valve...........................................................................................60
24. Fuel Damper Valve ...................................................................................61
25. Fuel Delivery, Return and Evaporation Lines............................................62
26. Fuel System Trouble in General ...............................................................65
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