95 740iL rough idle no power help!
I bought this beauty a few weeks ago with the rough idle, the car cant get out of its own way no power. need advice please. the following has been done leak test,plugs checked.MAF sensor replaced, no oil around plugs.no head leaks,cleaned ICV.After code reader was used the codes came up for Lamda c/u #1&2. I'm kinda at a loss should O2 sensors be replaced? could it be the injectors need cleaning? would it be plugged cats? could it be the OSV? also code came up for #4 cylinder coil pack put in new, code went away but still runs rough. I was told the loss of power could be that the tranny may of went into limp mode! and will reset after the lamda issue is resolved ,hope some-one can help