2004 Chrysler PT Cruiser

Engine problem
2004 Chrysler PT Cruiser 4 cyl Front Wheel Drive Automatic 93000 miles

After 8 hours of struggling I finally got my timing belt changed on my 2004 PT Cruiser. When I was done it started, I put it in gear and it stalled, started again, moved 10 feet and stalled, it started againg. I thought the ECM was trying to relearn so I didn't think anything of it, went for a drive later and it sounds and feels like the engine is misfiring. I let it idle and it sound like its going to stall but it doesn't. I changed the timing belt, tensioner, water pump. Any ideas, i'm pretty stumped!
Thank you in advance for your help
February 2, 2008.

I would start by rechecking the marks. If you were good before the change then it is likely something that was overlooked during the change.

This is an interference engine and if the timing was not on then ther may be damage to the valves or pistons.