Loss of power, varies depending on op temp.

[Kozworth]

1992 318is

When cold, If I rev the car (driving or neutral) to about 3-3.5k usually it shutters and will not increase, not even like a miss on 1 cylinder, its multiple because she basically dies. If I granny shift, sometimes when I am at op temp, the car can pull to 4.5k-5k pretty decently, but then will have a slight miss above that.

Coils are all ohm'ing at about 1.2 ohms. All ignition components are n/a on age, but visual inspection yields no concerns. I am just confused on why the shutter would happen later in the rpm band and not as bad when its warmed up?

Someone recommended checking the afm, since I did have a code for one (might be an old code, not sure how to delete codes). The carbon track did not look too bad, but with the age 2 of the 3 bolts broke off holding the carbon track. So eithor way, I would have to start drilling and whatnot to really relocate the track ever so slightly.

I am wondering if its an issue with an open loop sensor, since the pcm would use these parameters during warm up. Any Ideas?

[Kozworth]

So this is how it reacts.. The thing that I don't get is if it was an ignition miss, why would the time it misses change depending on operating temp?

[Kozworth]

Here's the vid. Copy n paste it

http://i912.photobucket.com/albums/ac322/akoz96/87901310-78A2-4814-9275-7B1199D089D1-881-000001B17AC4F0E9_zpsdb92e807.mp4

[Balleristic31]

My guess would have been afm as well. Of course check for vacuum leaks.

Also maybe a fuel issue. Pump perhaps but that is less likely than afm or vac leaks.