Car not idleing, power loss and lawnmower sound and stumbles...

[nuvolarossa]

My 318is m44 has misfire/stumble under low-load conditions, causing violent lurching. It will go away when you get off the gas, or give it lots more. .

The car would BARELY idle, fluctuating from 800 to near-stalling. The RPM got so low, the dash lights were coming on like they do in accessory mode. The powerband was virtually nonexistant after 2500RPM. Anyway, the car was still warming up. After about a minute, the car would idle fine again, and the powerband seemed to be back.

Now, the thing would seemingly misfire (seemed more like not at all...no bad noises, just an engine stumble like a lawnmower). It would occur while being at just like 1400RPM momentarily to move the car in the metering light line.

Now, on the highway...ANY time I was at low-load partial throttle the car would start feeling powerless and lurch violently from the "silent" misfires lol. If I got off the gas, all was well. If I gave it MORE gas, probably a throttle position of 50% or more it was fine...no misfiring. But man, at low-load part throttle it was a real bit*h. I don't know what is this...
my plugs:

my o2 sensor:


help me
more info on http://forums.bimmerforums.com/forum....php?p=8060022

[318tiRedLeather]

I would replace both they look pretty beat

[nuvolarossa]

Now I'll try with new plugs

[mooseheadm5]

Carbon fouled plugs = running too rich. Check fuel pressure regulator and coolant temp sensor (injection, not gauge.)
-Paul