Subaru 2009 IMPREZA Service Manual page 1217

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2. Spark Plug

Refer to "SPECIFICATION" for the spark

plug. <Ref. to IG(H4DOTC)-2, SPECIFICA-

TION, General Description.>

1) Disconnect the ground cable from battery.

2) Remove the air cleaner case. <Ref. to

IN(H4DOTC)-9, REMOVAL, Air Cleaner Case.>

3) Disconnect the connector from ignition coil.

4) Remove the ignition coil.

Turn #3 ignition coil by 180 degrees to remove it.

5) Remove the spark plug with a spark plug socket.

1) Remove the battery. <Ref. to SC(H4SO)-22,

REMOVAL, Battery.>

2) Disconnect the air duct from the secondary air

3) Remove the bolts that secure the air duct to the

rocker cover LH, and lift the air duct.

4) Disconnect the connector from ignition coil.

5) Remove the ignition coil.

Turn #4 ignition coil by 180 degrees to remove it.

6) Remove the spark plug with a spark plug socket.

IG(H4DOTC)-4