Subaru LEGACY 2006 Manual page 865

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MECHANICAL
4. Ignition Timing
A: INSPECTION
CAUTION:
After warming-up, engine becomes very hot. Be
careful not to burn yourself at measurement.
1) Before checking the ignition timing, check the
following item:
(1) Check the air cleaner element is free from
clogging, spark plugs are in good condition, and
hoses are connected properly.
(2) Check the malfunction indicator light does
not illuminate.
2) Warm-up the engine.
3) Stop the engine, and turn the ignition switch to
OFF.
4) Insert the cartridge to the Subaru Select Monitor.
5) Connect the Subaru Select Monitor to the data
link connector.
6) Turn the ignition switch to ON and Subaru Select
Monitor to ON.
7) Select {Each System Check} in Main Menu.
8) Select {Engine Contol System} 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 check the ignition timing at
idle speed.
Ignition timing [BTDC/rpm]:
±
10° 8 °/650 (MT Model)
±
15° 8°/700 (AT model)
If the timing is not correct, check the ignition control
system. Refer to "Engine Control System". <Ref. to
EN(H4SO)(diag)-2, Basic Diagnostic Procedure.>
Ignition Timing
EN-02533
ME(H4SO)-22