I have a 93 MX6 V6 and have taken exceptional care of both the exterior and engine. Within the last few months I have experienced the engine shutting down. I have had the codes checked, but nothing has shown up. So far the mechanics have had me: 1. Do an induction to clean the jets, 2. replace the fuel filter, 3. had the electrical system checked,and 4. replace an O2 sensor. Nothing has worked. Here is what it does. At highway speeds, when the engine gets nice and warm, the engine cuts out. The electrical system isn't shorting because the stereo and other devices never skip a beat. The only thing I haven't tried is a fuel pump, which will cost me about $600, but I don't want to do it if it may not be the problem. If anyone has any suggestions, please email me or post a reply. I have no idea what may cause this problem or whether it is just my car or a mx6 problem. Thanks for your help.