To be absolutely sure, you should:
* Consult a repair manual: A Haynes or Chilton manual specific to your 1996 Chevy Corsica will have diagrams and precise locations.
* Use a parts diagram: Many online auto parts stores (like AutoZone, Advance Auto Parts, etc.) allow you to look up parts diagrams for your specific vehicle's year, make, model, and engine. These diagrams often show the sensor's location.
Looking at a parts diagram will be the most accurate way to pinpoint the sensor's location on *your* specific engine. Don't rely solely on general descriptions.