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 | |