I need to figure out the cylinder layout for a 3.8L. I keep getting an intermittent P0305 (misfie on cylinder 5) and have already done the lower intake cleaning.

If I'm at the hood looking at the engine is it:

Back 3 cylinders: 1 (passenger), 2, 3 (driver)
Front 3 cylinders: 4 (passenger), 5, 6 (driver)

I think I'm am going to replace pugs/wires (although their only 18 months old), coil pack, and the injector in #5.

when you figure out what it is let me know mine is 302 and its been driving me crazy. I think air and water maybe passing the injector rings. causing my mis fire and lean condition. Still not sure....vm

PS that is the correct layout

You are correct.....passenger side back...1-2-3 Driver side
passenger side front...4-5-6 driver side

Wow, what a difference. I chanded what I listed above and the engine is much smoother and stronger. Feels like a different powertrain now.