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engine management problem 850

posted by  currenjw on  Thu Feb 24 21:09 CST 2011
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last visit: Fri Mar 30 09:48 CST 2012
[RELATED]

I just bought a 1996 850 glt which starts very well but engine races too much
, settles down....then races again....settles down.... then races again....
sometimes dies when stopped,
Sure would like suggestions as to probable causes.

I've had many 240s 740s 940s and a 960 but never had pulsating like this.
Any help is appreciated.








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    engine management problem 850

    posted by  tmannian on  Fri Feb 25 08:20 CST 2011
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    last visit: Sat Sep 20 10:31 CST 2014
    [RELATED]

    Could be a bad MAF too, if you've got a spare (or if you're at the junkyard pick one up, they should be ~$10, don't buy new) might as well try it. But look for air leaks first, unless you have the spare on hand.
    --
    If you're not driving it "like its stolen," are you really driving?








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    engine management problem 850

    posted by  Tapsa on  Fri Feb 25 02:10 CST 2011
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    last visit: Sun Oct 19 13:29 CST 2014
    [RELATED]

    Hi, sounds like engine management system is trying to find the right operating point but failing again and again.
    check vacum leaks and/or cracks in air duct from air filter to engine.
    br tapsa








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    engine management problem 850

    posted by  KlausC on  Thu Feb 24 22:53 CST 2011
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    last visit: Fri Oct 24 10:15 CST 2014
    [RELATED]

    Time to first check all of the vacuum hoses. Put in a new air filter while you are at it. Cabin filter also, just for kicks.

    Klaus
    --
    Always willing to listen, just not able to take direction.







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