* Repair Manuals: A Haynes or Chilton repair manual for a 1993 Chevy Cavalier will be your best bet. These manuals typically include detailed diagrams of the engine, including components, wiring, and more. You can find these at most auto parts stores or online retailers like Amazon.
* Online Parts Catalogs: Websites like AutoZone, Advance Auto Parts, or Napa Auto Parts allow you to select your vehicle's year, make, and model. While they may not have a full engine diagram, they often have diagrams showing specific parts within the engine, which can be helpful if you're looking for a particular component.
* Online Forums: Searching forums dedicated to Chevy Cavaliers or car repair in general might unearth someone who has scanned a diagram from a repair manual or has a helpful resource.
Important Note: The 1993 Cavalier Z-24 likely had a Quad 4 engine (likely a 2.4L). When searching, be sure to specify this engine type to get the most accurate diagrams. Searching for "1993 Chevy Cavalier Z24 Quad 4 engine diagram" will yield better results.
Keep in mind that even with a repair manual, diagrams can be simplified. For highly detailed information, you might need to consult a professional mechanic or a more specialized resource like a factory service manual (often more expensive and harder to obtain).