A friend had an ignition interlock device installed in his car a couple weeks ago because of his DUI conviction, and he swears that it is causing problems with it. He said that twice the car died while he was driving, and both times he had it towed to a shop. The first time was a burnt out CAM sensor and the second time was the EGR, I think. Including the tow charges, he said it set him back at least a thousand dollars. He furthermore claims that he asked the mechanics if the device could be the cause of the problems and they shrugged and said they didn't know. This is driving me nuts. Can anyone in here give me the definitive answer: does the ignition interlock device cause problems with the car?