Where is the low pressure service port to add freon on a 2006 350Z?

On a 2006 Nissan 350Z, the low-pressure service port to add refrigerant (freon) is located on the aluminum accumulator, which is situated near the passenger side of the engine bay. The port is typically smaller and has a cap that is usually colored blue. To access it, you may need to remove some covering or components, depending on your specific setup. Always ensure the engine is off and the AC system is properly diagnosed before adding refrigerant.