Well I started with just a bad voltage regulator in the Alternator it was on ( charging) then off. My wife drove it two short distances in one day the second of which the car would not start. The alternator showed a bad regulator in the alternator so I replaced the alternator with a new one. Charging is back. Now I have the problem of a low idle, so low when turn into a parking spot or driveway and the AC on it dies. Changed the plugs and wires today, its a little better but still dies. It is a 2003 Sub and has 187000 miles. Runs great, does not burn any oil. Anybody got any ideas?