96 has OBD2 level computer with 16 pin trapezoidal
connector LH side ,above knee. must face you with open end.
most are under dash edge , some under ash tray and others under a simple plastic pop off panel (generic discription of location)
Beg, barrow, rent ( go to AutoZOne to get free scan) a scanner , pull the code, and report.
You can buy one at Harbor freight for $29-$39 depending on Sale status.
your car will produce a Pxxxx code
if CEL lamp flashs , this means SERIOUS. (dont drive)
BAT Auto Technical-Professional mechanics giving advice-An Educational Site w/ OBD2 Trouble Codes and Technical info & Tool Store.
ymmv