check your thermostat/ water pump, sounds like the computer is shutting the car down, due to it getting too hot! u could try putting in some type of gas treatment, like LUCAS, to clean out the fuel injectors. But it really sounds like your car is not circulating the anti-freeze properly. Getting hot, check the gauges on the dash! especially the water temp. You're computer could be going bad, how many miles on your car? That makes a difference.
