spotter74

My battery went bad which caused the MFI relay to constantly click until I pulled it. I then replaced the bad battery with a new one and ever since then I have the following problem. The problem is when I turn on the AC and the car is in gear the idle go up and down cause the car to shake and almost die. The service engine soon like came on and the code is P0725. I had the code clear and havent used the AC for several weeks and the car runs fine. Last night I turned on the AC the car idles rough and the light came back on, any suggestions on a fix??? Thanks in advance...