spark plug firing order on 2001 Chrysler Town & Country

I need a spark plug firing order diagram for my 3.8l town and country. The van backfires and stalls.

Asked by for the 2001 Chrysler Town & Country
1-2-3-4-5-6 here is a diagram of the engine and coil pack hope this helps.
Thank you for your time. I switched out the plugs and the van started to back fire and kept stalling out. I had the firing order wrong. thanks!