I've got a 2000 GT and my engine light just came on. Last couple days it's started idling different. Acts as though it's going to stall out but doesn't. Drives fine, only issues are when idling. Also, when I brake excessively (ie: light turns red and have to stop abruptly) steering pulls to either side. Mostly to the right. Disc brakes don't pull so I'm not sure where it's coming from. Any ideas??