My 2001 Kia Rio is bucking like crazy...I changed the plugs and still didn't solve the problem...when I come to a stop it bucks a few times but hasn't stalled out..this has been going on for a week now, even went and changed the plugs for a second time, nothing! Now today the check engine light has come on, it only has less than 33,000 on it...any ideas???? Oh yeah and the air bag light comes on and then maybe after a week or so it goes out, only to come back on again for a while..I've learned to drive with my arms criss crossed in case the air bag decides to deploy..(only kidding!) Why would they deploy...afterall my daughter who was at a stop light was rear ended by a truck who pushed her 2001 Kia Rio under the rear of another truck that was in front of her at the stop light and the bags never deployed...and the car was totalled..Nice huh?? Thank God she wasn't hurt, but to make matters worse it was the day before her wedding and she had to march down the aisle with 2 black eyes! Any ideas would be greatly appreciated.