I've just bought my 2002 5 speed manual Boxster (986) from my partner who put 27,000 Km (16875 miles) in 5 years. He changed the evaporator because of leakage about a year ago. The A/C is working fine, lots of cold air even in the hot an humid days of the Caribbean where I live but...... when I suddenly press the accelerator pedal it kicks out the compressor for like 5 seconds and then kicks back on again, runs ok until I press fast on the pedal when kicks out again and so on. At first I thought this could be a feature for having all power when you need to accelerate fast (passing another car for example), but now I don't know. It does it even at idle: say you're stopped in a red light, you feel the compressor is on and cold air is blowing, then you rev it for a moment let it back to idle and about 5 seconds later you hear and feel the compressor kicking on again (meaning it went off while reving) and remains like this until you rev it to reassuming your drive. When I'm on a constant speed it does not turns off the compressor, thats why I have good cold air.
Is this normal? Low refrigerant charge and pressure switch taking out the compressor?
Thank you guys and girls in advance for your imputs
Rafael

 

The compressor will disengage at full throttle.

 

Doc, Do you ever sleep?
It's incredible how you respond to so many posts, in fact I was hoping that you read my post because your answer is highly appreciated for all of us.
Anyway I think my Boxster is disengaging the compressor with much less than full throtle. Maybe a fourth of the total travel of the pedal (say 2000 rpm's), but only when I do it fast from idle for example.Can this feature be adjusted? If so, mine is definitively out of specs.
Thanks for your answer and time,
Rafael

 

If you romp on it fast, it may just trigger the ECU to expect full throttle and cut the compressor to allow the jump off the line. I can dig into it a little more.

I sleep....sometimes

 

Logic answer, thanks again.
Can't believe that when you're not posting you're "digging" into things to give more accurate answers!
Great guy you are. No "brown-nosing" here.
Rafael