Hi all, my E30 is having running problems and I could do with a hand. It idles and revs fine until warmed up, plenty of power available, then once warm it starts to run rough, sometimes stalling at idle. The exhaust becomes smokey at this point also, as if the mixture is far too rich. Sounds like the choke isn't releasing once it's up to temp. The ICV, throttle body and injectors have been cleaned through and new plugs installed recently, no difference. Anyone had a similar experience? Thinking of renewing all vacuum hoses as they're the originals, and cleaning sensor connectors etc. Any idea what i should try next? Is there any way to test for a faulty temp sensor or O2 sensor at home without bmw diagnostics kit?
Thanks very much!
Mark