my car is hesitating sometimes and the check engine light comes on then goes off what the heck is wrong and what should i do the abs light comes on some times to any ideas

 

You need to take it somewhere or obtain the software to find out what codes you have. Sounds like a misfire.

 

Get the code(s) read - even with the light off most stay in "history" for dozens of ignition cycles.

 

Go to Autozone and have them read the codes for you. I think this is a free service they offer. Write them down accuratly then post them here and people will help you out. May also help to make yourself a sig with details about your car and what mods you've done.