What is the firing order for a 4 cylinder 1989 Nissan Sentra wagon?

The firing order for a 1989 Nissan Sentra wagon with a 4-cylinder engine is 1-3-4-2. This means that the cylinders fire in the sequence of cylinder 1, followed by cylinder 3, then cylinder 4, and finally cylinder 2. This firing order is important for engine timing and smooth operation.