07 525i rough idle, idle bouncing, power loss

[Willy33]

Hello Guys,
I have a 2007 6 speed manual 525i E60 N52 with 69k miles. Starts fine, then a rough idle surges up to around 12-1500 rpms then it slowly settles.. after it settles it almost stalls but "bounces off of 500 rpms up to around 7-800 over and over.. weird part is at this point when I attempt to rev the engine it maxes out around 2000k rpms if I have the pedal on the floor.. If I attempt to drive it, it does the same thing and maxes out around 20 mph.. never going much above 2000 rpms.. recent parts I've installed (within 10k miles) vanos solenoids, ccv valve kit, all spark plugs and ignition coils off the top of my head..
Codes:
29CC- dme combustion misfires several cylinders
29CD- dme Misfire Cylinder 1
29CE- dme Misfire Cylinder 2
29CF- dme Misfire Cylinder 3
2A3F- dme valvetronic actuator: power supply
2C24- dme Oxygen sensors before catalytic converter mixed up.

When this first started I changed out the Valvetronic motor relay and it immediately fired up and ran great then after ignition off and restart went right back to the issue, so I then replaced the Valvetronic motor, I replaced the spark plugs in cylinder 1-3 again just to be on the safe side.. I moved around the ignition coils to see if the codes would follow, they didnt.. I checked the crankshaft position sensor for oil.. its clean.. I'm running out of ideas, Im finding it weird it's giving me misfires in the first 3 cylinders at the same time.. Maybe I replaced the wrong relay when I was trying to replace the valvetronic relay.. I'm running out of ideas.. if any of these issues sound familiar or anyone has any guesses it's much appreciated.. Thanks

[mia.onufrak]

hi! i was experiencing the same thing with the rough + bouncing idle.

take a peek at the fuel injector seals. i picked up some fuel injector cleaner and ran it through, that helped. this may seem stupid, but when was the last time you changed your oil? what weight was it?

also, do you have any tunes? (mhd etc)

[Willy33]

Ok thanks for the advice, I'll take a look at those seals.. Last oil change was about 10 months ago (2k miles) 5w-40 is what i used, and no tunes.

[mia.onufrak]

of course, i hope that helps