I have done the Don't be a Rikki non-seq conversion and just recently installed my PFC w/Commander. I just plugged it in and am running the stock map. I did the 10 min idle, then 10 min with a/c on, then 10 with the rear defrost on so that it would learn to idle. After driving the car for a little while, it would search for idle and at one point, I stopped at a stop sign and it actually died. It usually dips down to like 500 rpm then it will jump to 1300 or so and slowly ease back down to around 800-900. Does anyone know why it does this? My mods are dp/mp/Apex'i GT cat-back and a K&N drop-in. Also, when I was driving I had a boost problem, it would only get like a few pounds of boost, but I just re-installed the turbos the same time I installed the ecu, so I might have a coupler leak somewhere.

 

Unless your O2 idle control is hosed, the engine is getting too much air at idle. If you air pump is disconnected/removed, turn the O2 idle control off.

Otherwise, adjust down your idle speed like you would with a stock ECU.

 

It took my car a couple of weeks to get its idle completely straigntened out. My advise is to leave it alone for a week or so and see what it does then. I am pretty sure this will fix your idle hunting issues. Remember this is a learning computer and the more it learns the better it runs. I love it!