Ok recently ive had this rough idle problem. No cel lights and its a 05cam I-4 with 70k. I do alot of traveling for work ect. Idling too...regular oil changes and inspections but nothing anyone has notice i guess.

I guess this would be the best way to describe it. I start it up drives fine usually in the morning. Once its been heated up all day itll give me a problem. Sometimes everything is ok and idles fine. Then it will idle rough. Its more like an ac problem though. When i turn off the ac it does shake at all. Once you click the compressor on by hitting the ac button all is fine...or so it seems then it will bog down Shakeand smooth out....then it will click off on its own and be fine. Once it clicks back on it shakes then smooths back out. Never really making the car die just shake....The idle seems to be steady except when its clicking on or off.All this while in Drive. Inneatural or park it idles fine withac clicking on and off and no shaking.The rpm drops and rises within beat of the compressor clicking onor off.Which is normal im guessing. Ive cleaned out the intake system with seafoam and have thrown that in the gas tank. Air flilter was recently cleaned (K&N filter)Also the maf sesnor has been cleaned with crc maf cleaner. I keep waiting on a cel light but it seems that to me if it was the ac it wouldnt throw one. Is this an a/c pressure switch? Clutch? Any way to check?

When i 1st got the car at 40k it seemed to be overpowered. It would almost wanna jump at the line with brakes applied and now its seems very weak. Not sure if any of this helps. Now it seems when i hit the gas from a stop at a moderate acceleration the ac seems to blow harder when throttled. Like its lacking power somwhere. Ac blows cold as hell...Just above 40degrees F at full blast and holds well temp wise. I dont know crap about ac systems. I get the general idea how they work. I just want to know what i should be looking for its been driving me nuts. Specially sense i rack up 3k every month or so.Its just all seems sketchy. Engine is still in great shape no leaks ect. No vacum leaks fuses are all in good but used shape. Ill throw a pcv at it ...then a battery do to the lack of power....Almost that time for both... Anyone help please!!