Olds stalls restarts and runs

My mother’s 1995 Olds Achieva quad 4 I believe it is 2.3L had 2 episodes this year where it would stall, but restart and run OK. No trouble code set. The GM dealer could find nothing wrong. She was wondering if the remote starter that was installed early this year prior to these stallings could be causing the trouble. Of course some sort of bad connection could caused the trouble, but I’m wondering if these aftermarket remote starters have been known to cause very infrequent engine stalls?