What is the firing order for a Chevy Lumina?

Depends on the year. For 3.1L Luminas built 1994 & older with the coil pack located under the exhaust manifold. The firing order is 1,4,6,3,2,5. For 3.1L Luminas 1995 & newer with the coil pack located on top of the motor. The firing order is 5,2,3,6,4,1.