...speedomoter is off and so is RPMs??? It doesn't happen all the time, but it started about a year ago. I noticed while driving that it said I was doing 70 when I know it was more like 45. It reset itself and was fine for another 6 months. Same thing happened again. Turned the car off and reset. Now, the gas gauge is acting up. Just did a fill up and the next day it said 3/4. Turned the car off and on and it reset to full where it should be. Today it's happening again. At a stop light, the speedometer says I'm doing 20mph. The RPM looked high and the gas gauge is off again. How can I fix this?? Is it easy (hopefully)???