My A/C when Idle blows Hot air but when RPMs are over 1500 it starts to cool down not moving (Gets down to 40F). Things i Have Done and Replaced are as followed Tested Static PSI @ 90, Replaced the Condenser due to the lower fins being damaged. Re-charged A/C Low Side wont drop below 100 PSI high Side around 120. the compressor seems fine as the A/C is not Cycling. Wondering if maybe the Expansion Valve may be the culprit? or is it the compressor. No Leaks Holds Vaccuum and no metal shavings in lines and works fine when driving.