BOSS_man

Hello everyone: I have a 2004 E60 88k mles N62 engine
Thursday I was coming home from work, car was running like a top! As I turn into my street I lost engine power, it didn't cut off, but it feels as if I'm running on 4 cylinders.I have no warning lights.What I've done so far:
All coils checked = good
Alternator = 14.2 steady/14.6 with load
Cleaned MAP sensor
removed and cleaned throttle body (harness looks good)
Battery is strong

I'm stumped, any ideas on what what might have tripped and how to reset it before I go to the stealership and pay out the a butt for a "simple" fix?

audiophool

Codes?

BOSS_man

Had it checked, but none at all, still runs like crap.

audiophool

I was thinking if you suddenly were that much down on power that one of the Valvetronic units stopped responding. But I would expect that to throw codes. Realtime monitoring with a BMW compliant OBD scanner might help you. Just guessing otherwise.

BOSS_man

I agree. going to have it rechecked as soon as I got time. Luckily this is not my daily.