how to get codes

im working on a friends 01 sunfire with a 2.2. I know its misfiring im just trying to find out what cylinders. Their is a cel on so i was wondering with these cars is their anyway that you can pull a code by your self. For example 1st gen neons you turn the key on and off so many times then the cell will flash up a code. Thanks for any advice in advance.

actually that works on pretty much every dodge made before 2001,

but not on these cars, you need a scan tool

alright thank you, anyone have any advice on how i can troubleshoot this an easy way. I dont want to play the guessing game here. I really think that its one of the coil packs, but i dont want to go buy one and waste the money. Again thanks for any help in advance.

just go to an auto parts store, most of them will scan your codes for free