I am running out of ideas on my sons 2004 crossfire stall issue and hope I can get some advice here. Car has 73000 miles and overall has run well over the 8 years he has owned it. A few years ago he had stall issue. He had the RCM module three solder points resoldered, and a new pulse module installed. Now after 4 years, the stall issue has returned. Intermittent stall, and wait to restart. I had the RCM resoldered again, and replaced the cps. I did use an import direct part from oreillys as couldn't find correct bosch part locally or on line for the 2004. Does the 2005 onward Bosch part fit this year? After install of cps, the car still stalls intermittently, but starts back up immediately. It stalled yesterday and he was able to restart as he coasted. This is obviously a big safety concern even though he rarely drives on highway. Some of the forum ideas I haven't tried are;

Replace key fob batteries
Install camshaft sensor
Shake crankshaft wire while running to see if engine stalls
Get codes read to see if any hidden codes. (nothing has shown up on dash since this started). Going to autozone today for this.

My son loves his car, but this is very frustrating. Any suggestions would be much appreciated.

Dean