the last few times i have driven my car i have gotten a momentary check engine light. i stays on for about 1 min. and goes out. it seems like i'm always lugging around in 4th gear when it happens. i put it on the scanner and code 214 comes up. what exactly is cid sensor-- circuit failure.the car always seems to drive the same when the light comes on. does anyone know where this sensor is so i can buy a replacement. thanks