Where is the AC drier on a 1991 Toyota MR2?

On a 1991 Toyota MR2, the AC drier is located in the engine compartment, typically mounted on the passenger side near the firewall. It is part of the AC system and is connected to the refrigerant lines. You may need to remove some components for easier access, depending on the specific setup of your vehicle. Always refer to a service manual for detailed diagrams and instructions.