I just picked up one from the dealer they had it in stock $215. The told me you have to buy the "black box" (aka igniter) with the the coil as they are "calibrated" ???? I am having the same problem as you.. Frank gave me a laundry list and it worked for a while but now I am back to the stalling problem.
Here is Franks list of things to check.
1) Check all vacuum lines to make sure they're not cracked and in place where they should be.
2) Check the EGR system operation.
3) Check the vacuum switch on the front of the intake manifold near the thermostat - it has 2 vacuum hoses and often is cracked - even though it looks ok.
4) Check the rotor and distributor cap.
5) Check ignition timing.
6) Check the o2 sensor (it's about time to replace it).
7) Clean the ISC and throttle body.
8) Check the resistance values on the IAC, TPS and AFM.
9) Put in a bottle of fuel injector cleaner and as a last resort, send the injectors out for cleaning.
10)Another last resort would be to replace the fuel pump.

Good luck if you find a solution please let me know.
Terry