air con

[rx7_andy]

when i turn the air con on my car somtimes starts to idle funny and cuts out i have a apexi ecu and i know they dont like the air con but its only just started doing this ive had the apexi in for 3months now any ideas lads

[TD06_FD]

Have you missed the steps??

Disconnect Power
Unplug stock ECU
Plug in PowerFC ECU
Reconnect Power
Start Car, let it idle for approx 10 minutes before doing anything
Turn on aircon, let it readjust its idle and wait about 10 minutes
Turn on demister, let it readjust its idle and wait about 10 minutes