For the 2002 Ford Focus:
For the 2.0L DOHC (Dual OverHead Cam) L4 VIN "3"
Cylinders:
(back of engine)
1-----2------3------4
(front of engine)
Ignition Connections:
(back)
1...3
4...2
(front)

For the 2.0L SOHC (Single OverHead Cam) L4 VIN "P"
Cylinders:
(back of engine)
1------2-----3-----4
(front on engine)
Ignition Connections:
...(back)
.....4
2.......1
....3
...(front)

Let me know if this helped, or if you have additional information or questions.
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