Either the chip in your key is worn or the contacts in the key cylinder are bad.
Check your fuses behind the glovebox. I had the same problem and turned out to be the fuse to the "lighter" was out. May, or may not be the same fuse but this light was letting me know that something was not "right."
The master cylinder contains the reservoir for the brake fluid. This is where you would add it on an 1990 Cutlass Supreme.
It seems that they most problems with the 93' Oldsmobile cutlass supreme would be the engine and the break. Those seem to go out the most on this car.
Sometimes the Cutlass sedan and the Delta 88 would share the same wheel design.
1 or 2 inch lift
At the firewall on the passenger side
Hose leaking Water pump leaking
Blown fuse?
sad to say.but i do not know either... i have a 1994 cutlass supreme sl and am looking for the same answer. if you hapen to find the answer. i would appreciate it if you would contact me at jazingg@mail.com thanks
Replace ignition module (under the distributor cap)
.980 machine top discard would be .965 there now.
Throttle plate stuck in open position