Subaru Legacy 2004 Service Manual page 1131

MECHANICAL
3. Idle Speed
A: INSPECTION
1) Before checking the idle speed, check the fol-
lowing:
(1) Ensure the air cleaner element is free from
clogging, ignition timing is correct, spark plugs
are in good condition, and hoses are connected
properly.
(2) Ensure the malfunction indicator light does
not illuminate.
2) Idle the engine.
3) Stop the engine, and turn the ignition switch to
OFF.
4) Insert the cartridge to Subaru Select Monitor.
5) Connect the Subaru Select Monitor to data link
connector.
6) Turn the ignition switch to ON and Subaru Select
Monitor switch to ON.
7) Select {Each System Check} in Main Menu.
8) Select {Engine} in Selection Menu.
9) Select {Current Data Display & Save} in Engine
Control System Diagnosis.
10) Select {Data Display} in Data Display Menu.
11) Start the engine, and read the engine idle
speed.
12) Check the idle speed when unloaded. (With
headlights, heater fan, rear defroster, radiator fan,
air conditioning, etc. OFF)
Idle speed [No load and gears in neutral]:
$
650 50 rpm
13) Check the idle speed when loaded. (Turn the
air conditioning switch to "ON" and operate the
compressor for at least one minute before mea-
surement.)
Idle speed [A/C "ON", and gears in neutral]:
$
825 50 rpm
NOTE:
Idle speed cannot be adjusted manually, because
the idle speed is automatically adjusted. If the idle
speed is out of specifications, refer to General Di-
agnosis Table under "Engine Control System".
<Ref. to EN(H4DOTC)(diag)-2, Basic Diagnostic
Procedure.>
Idle Speed
ME(H4DOTC)-22