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What is the spark plug firing sequence on 1973 vw squareback?

The firing order for a 1973 VW Squareback is 1-4-3-2. This means that the spark plugs fire in the following order:

1. Cylinder 1 (front, left)

2. Cylinder 4 (rear, right)

3. Cylinder 3 (rear, left)

4. Cylinder 2 (front, right)

The spark plugs are numbered from front to rear, with the front of the engine being the side closest to the radiator.