Where is the Mazda mx3 air conditioner low pressure port?

The low pressure port for the air conditioning system in a Mazda MX-3 is typically located on the receiver-drier or near the compressor. It is usually marked with a blue or black cap, which distinguishes it from the high pressure port. To locate it, look for the A/C lines running from the compressor; the low pressure port will be on the larger diameter line. Always refer to your vehicle's service manual for specific diagrams and details.