Automotive Air Conditioning Information Forum (Archives)

mike751 on Thu July 04, 2013 10:53 AM

Year: 2000
Make: mitsubishi
Model: mirage
Engine Size: 1.8
Refrigerant Type: r134a
Ambient Temp: 90
Pressure Low: unknown
Pressure High: unknown
Country of Origin: United States

Hi,

Can anybody tell me the correct low/hi pressure readings, based on factory specs, for my car? someone told me the low side should be 19psi, but I don't know what the high side should be.

Thanks,

Mike

94RX-7 on Thu July 04, 2013 12:25 PM

There is a range of correct pressures, depending on the temperature outside and in the vehicle.

What's the problem you're trying to solve here? Pressures are more of a diagnostic tool when troubleshooting components, and can't really be relied upon to determine if the charge is correct or not. Charge is determined mass, not pressure.