Bolt comes with a trick-looking two-into-one exhaust system, which includes an oxygensensor and exhaust gas catalyst that works with the closed-loop fuel injection system.
For instance, a malfunctioning oxygensensor accounted for about 28 percent of Mini repairs in 2012, while bad ignition control modules accounted for 26 percent of Saab repairs, according to CarMD.
Home testing uses fewer sensors typically a nose or mouth sensor to detect breathing, a finger clip to measure blood oxygen levels and a chest band to see if your body is trying to breathe.