Ignition Timing - Subaru 2002 IMPREZA Service Manual

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IGNITION TIMING
MECHANICAL
4. lgnition Timing
A: INSPECTION
1) Before checking the ignition timing speed, check
the following:
(1) Ensure the air cleaner element is free from
clogging, spark plugs are in good condition, and
that hoses are connected properly.
(2) Ensure the malfunction indicator light
(CHECK ENGINE 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
M ON IT0 R.
5 ) Connect the SUBARU SELECT MONITOR to
the data link connector.
6) Turn the ignition switch to ON, and SUBARU SE-
LECT MONITOR switch to ON.
7) Select (2. Each System Check} in Main Menu.
8) Select {Engine Control System} in Selection
Menu.
9) Select (1. Current Data Display & Save} in En-
gine Control System Diagnosis.
10) Select (1.12 Data Display} in Data Display
Menu.
11) Start the engine, at idle speed and check the ig-
nition timing.
lgnition timing [BTDC/rpm]:
If the timing is not correct, check the ignition control
system. Refer to Engine Control System. <Ref. to
EN(D0HC TURBO)-2, Basic Diagnostic Proce-
dure.>
12"23"/750
ME(D0HC TURBO)-24