I agree with Ssicarman. Change your ECTS. You did not post your vitals so exact details are limited. the sensor is here :
YouTube - 96-up saturn coolent temp sensor location
The ECTS is VITAL to fuel management along with other systems. If your car is pre 2001, it is resin tipped. The coolant eats through the resin sending false data to the PCM. The new ones are brass tipped and will last the life of the car. Usually the ECTS does NOT set of a code speciif to itself if it sets of a code at all.
Also agreeing with Ssicarman, your CPS is fine. It either works or doesnt work. no gray area. Yours is fine
You may also want to clean your EGR. a good cleaning never hurt.
NGK Cooper plugs? NO? Get them. Yes? make sure they are gapped at .040 or less