1-4-2-5-3-6
This means the spark plug wires should be connected in the following order:
- Spark plug wire 1 to cylinder 1
- Spark plug wire 4 to cylinder 4
- Spark plug wire 2 to cylinder 2
- Spark plug wire 5 to cylinder 5
- Spark plug wire 3 to cylinder 3
- Spark plug wire 6 to cylinder 6
This firing order ensures the correct sequence for spark delivery, ensuring optimal engine performance.