hello azrael,

my small turbo escort is running on haltech ps1000 ecu and we´ve made the following for the aircon:

-idle up 150-200rpm if aircon is "on"
-at full throttle and over 5000 rpm aircon "off"
-delay time 10sec-so after full throttle the aircon is "on" after this time

if the refrigerent-pressure is too high, the aircon disables itself-also the fan works without the control of the ecu.
the ecu has only the function to switch the enable-output of the ac, as on original eec-IV.

on haltech this is easy to make, cause there is an extra option for an a/c output.

kind regards,
philipp