* Body style: Two-door coupe, four-door sedan, station wagon, etc. Each had slightly different wiring needs.
* Engine: The six-cylinder and various V8 options had different alternator, starter, and ignition systems, impacting the wiring.
* Options: Power windows, air conditioning, power steering, and other options all added to the complexity of the wiring harness.
To find the correct wiring diagram, you need to specify the exact details of your 1973 Chevy Nova. Once you have that information, you can try these resources:
* Online resources: Websites like Chevy Nova forums (search for "1973 Chevy Nova forum") often have members who can help or may have scanned copies of diagrams. You may need to register. Some general automotive wiring diagram sites might have partial diagrams, but finding one that exactly matches your car's configuration is unlikely.
* Repair manuals: A factory service manual or a Haynes/Chilton repair manual specific to a 1973 Chevy Nova is your best bet. These manuals usually contain detailed wiring diagrams. These can be purchased online or at auto parts stores.
* Local auto parts stores: Some auto parts stores may have access to wiring diagrams through their computer systems, especially if you provide your VIN number.
Remember that working with car wiring can be dangerous. If you're not comfortable working with electricity, it's best to consult a qualified mechanic. Improper wiring can damage your car's electrical system or even cause a fire.
