* Haynes Repair Manual or Chilton Repair Manual: These are readily available at auto parts stores and online retailers. They typically include detailed wiring diagrams. The manual specific to the 1987 Fiero will be your best resource.
* Factory Service Manual: These are the most comprehensive but also the most expensive. You might find one used online through eBay, Amazon, or specialized automotive parts websites. These are often preferred by serious mechanics due to their level of detail.
* Online Forums: Websites dedicated to Pontiac Fieros (such as dedicated Fiero forums) might have members who have scanned portions of wiring diagrams or have digital copies they're willing to share. Be cautious and verify the source's reliability.
* Local Auto Parts Stores: Some auto parts stores might have access to wiring diagrams on their computer systems, although this is less reliable than using a dedicated manual.
Important Note: When using online resources, be extremely careful to ensure you're looking at a diagram specifically for a 1987 Pontiac Fiero, as there are variations across model years. Incorrect wiring diagrams can lead to serious damage to your car.
