E46 Intermitent rough Idel and loss of power
I have a problem that has me stumped with my wife's 03' 325i. This is an intermittent problem happening mostly after the car has sit in idle for a few minutes. The car seems to begin idleing very badly and a loss of power. The odd thing is, after driving it at a cruising speed for a few more minutes, the power regains and it drives smoothly again. There has only been a time or two where it didn't clear up and I basically unplugged the battery for a few minutes and this fixed the problem, until the next time of course. Could this be an ECU problem since disconnecting and reconnecting the battery seems to work, or what are some of your thoughts. Injectors are clean by the way.
Thanks in advance,