Just purchased my 2002 Doge Stratus, drove it home appx 100 miles from dealership, no problems with stop and go until I put some Sea Foam in the gas tank. Did I do something wrong or is it maybe the IAV or just a simple fix such as a new battery. I noticed they (dealership or previous owner) has a nail, inserted beside the cable that goes to the battery knob. Maybe this was a previous problem. I can sure use your expertise on this.