The car wouldn't start, we replaced the battery, it started and the next day we had the same problem so we found out the alternator was bad. We replaced the alternator and last night while driving home the car was not getting enough power. We had to start turning things off(heater, radio, etc.) to make it home and the lights were getting dimmer and dimmer, the check engine light came on. What else coud this be? Electrical or a fuse maybe? This car is driving us crazy. It has a super charger also. Thanks