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Ignition Checks: Spark

Check for spark at spark plug wires using a spark tester. Check resistance of each spark plug wire. Replace wire if resistance is not within specification. See HIGH TENSION WIRE RESISTANCE table.

HIGH TENSION WIRE RESISTANCE

Application		Ohms
Forester
No. 1 & 3		6430-15,010
No. 2 & 4		6670-15,570
Impreza
No. 1		5950-13,890
No. 2 & 3		6240-14,560
No. 4		6670-15,570
Legacy
All Wires		5120-12,340