Stalling on 2003 Nissan Altima

My car is stalling without the engine light comming on. What do you think could be the cause or causes?

Asked by for the 2003 Nissan Altima
Even though the Service Engine Soon/Check Engine light has not yet illuminated the on board computer may have stored a "pending code" and also holds a wealth of information that may hold the real reason your car is stalling.
Nissan have a recall call your dealer with your VIN# ask them if recall NTB06-051a was carried out, (it had to do with the engine stalling), it involves an ECU reprogram.