What is the wiring diagram order on distributor cap for a 1990 camaro v-8 engine?

There's no single definitive wiring diagram order for a 1990 Camaro V8 distributor cap. The firing order depends on the specific engine (e.g., 5.0L, 5.7L TBI, TPI) and even variations within those engine types. The distributor cap's terminal arrangement might also vary slightly depending on the manufacturer of the distributor itself.

To find the correct wiring order:

1. Identify your engine: The displacement (5.0L or 5.7L) is crucial. Look for engine codes stamped on the engine block. Knowing whether it's TBI (Throttle Body Injection) or TPI (Tuned Port Injection) is also important.

2. Consult a factory service manual: A Haynes or Chilton manual for your specific year and engine will have the firing order and distributor cap wiring diagram. This is the most reliable source.

3. Check the distributor itself: Sometimes, the firing order is printed directly on the distributor cap or body. This isn't always the case, however.

4. Use a reliable online resource: Websites specializing in Camaro parts and repair often have diagrams, but always cross-reference with your engine specs. Be cautious, as incorrect information is possible.

Without knowing your specific engine, I cannot provide the correct wiring diagram. Providing the engine code from your engine block would allow for a more accurate answer. Incorrectly wiring the distributor cap can damage your engine. Use the above steps to ensure you get the correct information.