I havve a 2003 Ram 1500, with a 4.7 and 5 speed maunual. Today the SES light came on. The code it threw was P0058 which i know is the O2 sensor on the passenger side. Well i checked the fuses/relays as well as all the wiring but to no avail, found nothing wrong. I just jumped in the truck to head into town real quick, and now whenever i push the clutch in to coast, the truck stalls. It also does this while sitting at stop lights, and while slowing down. The trucks idleing very rough, and is only running about 500 RPMs while ideling. Could this be the sensors way of telling the computer that its bad, or is it more likely a plugged catalytic converter?