Folks... I am having the same problem with my 99 Accord V6 Coupe with 210K. My car stalls while driving but can restart it without problem. Did the recall on ignition switch back in 2002. I am still having problem after doing the following:

1. Replaced the harness (or relay) behind the ignition switch
2. Cleanout any cloggs in the EGR valve
3. Replaced the fuel pump.

After all these still no luck. One thing to note thought is that the engine light has been on for months with P0401 and P0420. Other than replacing the EGR and/or Cat Converter, I am running out of ideas. Does anyone have any suggestions? Also, would some like P0401 and P0420 cause the car to suddenly stall? I thought it is not supposed to be related.

Thanks folks