I just bought a 1996 MX 6 with 84k miles on itfrom a small corner lot. Within 2 days of buying it, the engine started revving and lurching while driving. Also, the last time I started it up, the engine light was on and the O/D light was flashing. I'd only driven it less than 200 miles! I called the guy I bought it from, and he told me to disconnect the battery cables and touch them together for at least a couple hours. That seemed to work, but I took it to a dealership anyway to ask them what the issue might be, and they told me that if the O/D light is flashing and the engine light is on it most likely needs a new transmission, and that Mazda does not allow them to rebuild them, they have to replace it. I contacted the dealer I bought it from and he told me that he thought it was an electrical issue, not mechanical, and that the battery was bad. He said if I replaced the battery, that would most likely clear up the problem. Now, I don't know too much about cars, but that seemed crazy to me. Can anyone give me some feedback on this? Also, the Mazda dealer I took it to said the EGR has some carbon build-up and is sticking ($800 to fix) and the O2 sensor was bad ($350 fix). Those things plus a new transmission would be more than what I paid for the car! Any help is appreciated.