Subaru Legacy III (2000-2003 year). Service manual — part 184
FU(H4SOw/oOBD)-42
FUEL INJECTION (FUEL SYSTEMS)
ENGINE CONTROL MODULE
13.Engine Control Module
A: REMOVAL
1) Disconnect battery ground cable.
2) Remove lower inner trim of passenger side.
<Ref. to EI-39, REMOVAL, Lower Inner Trim.>
3) Detach floor mat of passenger seat.
4) Remove protect cover.
5) Remove nuts (A) which hold ECM to bracket.
6) Remove clip (B) from bracket.
7) Disconnect ECM connectors and take out ECM.
B: INSTALLATION
Install in the reverse order of removal.
CAUTION:
When replacing ECM, be careful not to use the
wrong spec. ECM to avoid any damage to the
fuel injection system.
Tightening torque:
5 N·m (0.51 kgf-m, 3.7 ft-lb)
FU-00009
FU-00514
FU-00315
(A)
(A)
(B)
FU-00316
FU(H4SOw/oOBD)-43
FUEL INJECTION (FUEL SYSTEMS)
MAIN RELAY
14.Main Relay
A: REMOVAL
1) Disconnect battery ground cable.
2) Remove lower inner trim of passenger side.
<Ref. to EI-39, REMOVAL, Lower Inner Trim.>
3) Disconnect connectors from main relay.
4) Remove bolt which holds main relay bracket on
body.
B: INSTALLATION
Install in the reverse order of removal.
FU-00009
FU-00441
FU(H4SOw/oOBD)-44
FUEL INJECTION (FUEL SYSTEMS)
FUEL PUMP RELAY
15.Fuel Pump Relay
A: REMOVAL
1) Disconnect battery ground cable.
2) Remove lower cover. <Ref. to EI-35, REMOV-
AL, Instrument Panel Assembly.>
3) Disconnect connector from fuel pump relay.
4) Remove fuel pump relay from mounting bracket.
B: INSTALLATION
Install in the reverse order of removal.
FU-00009
FU-00431
FU(H4SOw/oOBD)-45
FUEL INJECTION (FUEL SYSTEMS)
FUEL
16.Fuel
A: OPERATION
1. RELEASING OF FUEL PRESSURE
WARNING:
• Place “NO FIRE” signs near the working area.
• Be careful not to spill fuel on the floor.
1) Disconnect the connector from fuel pump relay
(A).
2) Start the engine and run it until it stalls.
3) After the engine stalls, crank it for five more sec-
onds.
4) Turn the ignition switch to OFF.
2. DRAINING FUEL
WARNING:
• Place “NO FIRE” signs near the working area.
• Be careful not to spill fuel on the floor.
1) Set the vehicle on the lift.
2) Disconnect the ground cable from battery.
3) Lift-up the vehicle.
4) Remove the protector RH (Front).
5) Drain the fuel from fuel tank.
Set a container under the vehicle, and then remove
the drain plug from fuel tank.
6) Tighten the fuel drain plug, and then install the
protector RH (Front).
Tightening torque:
26 N·m (2.65 kgf-m, 19.2 ft-lb)
Tightening torque:
18 N·m (1.8 kgf-m, 13.0 ft-lb)
FU-00648
( A )
FU-00009
FU-00443
FU-00444
FU-00444
FU-00443
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