The stalling could be related to the alternator repair. The battery had to be disconnected which would cause the Engine Computer to lose its memory. Minimum throttle must be relearned before the computer will know when it must control idle speed. To meet the conditions for the procedure to take place, drive at highway speed with the engine warmed up, then coast for at least seven seconds without touching the brake or gas pedals. Don't press the clutch pedal. The computer needs to see the high intake manifold vacuum that coasting causes.
"Then once I actually get the car going, if I stop accelerating then it will stall"
If by "stop accelerating" you mean you remove your foot from the gas pedal, do the coasting relearn procedure. If you mean you hold the gas pedal steady to maintain a constant speed, and that's when it stalls, that is a common symptom of a MAP sensor that is beginning to fail. The clue is the engine will continue to run, (poorly), as long as the gas pedal is moving. Position and direction don't matter.
Thursday, March 11th, 2010 AT 5:18 PM