Where is the low-pressure port of AC system located in a Nissan 350z?
The low-pressure port of the AC system in a Nissan 350Z is located in the engine compartment, near the firewall, on the passenger side. It is usually marked with a blue cap and has a smaller diameter than the high-pressure port. The low-pressure port is used for charging the AC system with refrigerant, and also to measure the system's pressure.