i'm going to guess something else is making the throttle body go wacko.
what exactly happens when you try to start it? does the engine fire up at all?

 

The engine just cranks and sometime it would seem like it's about to start but just keeps cranking.

 

OP - There could be so many things that it COULD be. I'm not going to tell you it is one or the other because I could be dead wrong. Just as well anyone could be wrong which will cost you lots of money. For example perhaps it's not a crankshaft position sensor and and a an eccentric shaft sensor #5 here

http://realoem.com/bmw/showparts.do?...06&hg=11&fg=25

In this case you would have wasted your money on the part you bought and then blew it on a valvecover gasket, botlts, o-rings, seals as well as the sensor which is an easy $500 right there.

If I were you i would either get some tools to read the codes yourself or take it in and bite the bullet. Just keep in mind, I've seen BMW $tealers be wrong on certain things. Costing owners a few thousand. They scan, "guess" and then repair. If that's not it they move onto the next...all on customer's expense.

This is your engine.
http://realoem.com/bmw/partgrp.do?mo...id=47759&hg=11

Here is you see the trottle body in the very beginning.........
http://realoem.com/bmw/showparts.do?...77&hg=11&fg=40

So is there something before that throttle body like an electronic device that pumps air into the intake manifold. I am not sure but that throttle body may be acting normal and if so it is waiting for the pump to pump air into it in order for it to stay open. OR it could be that the motor on the throttle body is not working properly at all. What happens if you keep it forced open does the car start?

 

Thanks for all your help AchtungE60

currently the codes that are coming up are P0120, p0123, P0222, p1631

i've already ordered a used throttle body so hopefully this will work, but if not I am going to have to bring it into a auto mechanic.

 

Sounds good. Those codes are throttle body ckt codes, I would be concerned about this generic code P1631 because that is usually an immobilizer type code or accelerator ckt overload. It really depends. Then at the same time it could be the accelerator and it's signal from you Lambdas. Accelerator has a sensor I believe and the throttle body is tied to that. Definitely replace that throttle body since you already ordered a new one but if that doesn't help start looking at the accelerator sensor.

 

Throttle body is not your problem. Try disconnecting the battery over night.
I think you may need a battery.

 

 

I have taking the battery out over night, still same problem.

 

Ok but did you try to put in a new battery just to make sure that's not ur issue? You can always return if it doesnt work.

 

The battery was taken out over night, That night i took it to a local O'Reilly auto part where they did a battery test. I left it there for an hour came back and said test was good and the battery is fully charged. I have a Mercedes with the same working battery, I swapped it out and car had the same symptoms which is the throttle body butterfly flap still flapping on it's own.

The weird thing is the car was running right before it was brought into the auto body shop to get some cosmetic repair done.