’97’ 325i coupe keeps cutting out

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Grumster - 03 Jun 2008 06:22 GMT

my 97 325i will cut out without any warning i dont get any engine
management light come on, all that happens is it just seems to miss a
beat and then misfires, when i switch it off and restart the problem
has gone, ’untill the next time’
it will run perfectly for days and then some days its hopeless.
if anyone knows what could be causing this i’d much appretiate your
help.

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Scott Dorsey - 03 Jun 2008 14:51 GMT

>my 97 325i will cut out without any warning i dont get any engine
>management light come on, all that happens is it just seems to miss a
[quoted text clipped - 3 lines]
>if anyone knows what could be causing this i’d much appretiate your
>help.

Take it to a mechanic who can pull the codes off the engine and see what
the ECU is reporting when the system fails. That's the first step. Without
seeing that, it could be anything.
--scott

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"C'est un Nagra. C'est suisse, et tres, tres precis."

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BlackE87 - 11 Jun 2008 18:46 GMT

Hi,

I'm not sure if this is OBD1 or OBD2 specific but you can try the built
in diagnostics sequence if you dont have a scantool

http://www.bmwe36blog.com/2007/01/24/bmw-on-board-diagnostics/

My initial thoughts are:

1) water damaged ECU
2) water or oil filled sparkplug chamber (take the coils out to check if
they're wet)
3) faulty idle control valve
4) Mass Airflow Sensor defective or wires broken

BlackE87

>> my 97 325i will cut out without any warning i dont get any engine
>> management light come on, all that happens is it just seems to miss a
[quoted text clipped - 8 lines]
> seeing that, it could be anything.
> --scott

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Nicik Name - 27 Jun 2008 02:52 GMT

> my 97 325i will cut out without any warning i dont get any engine
> management light come on, all that happens is it just seems to miss a
> beat and then misfires, when i switch it off and restart the problem
> has gone, 'untill the next time'

Get to a shop before you run thru a starter.

> it will run perfectly for days and then some days its hopeless.
> if anyone knows what could be causing this i'd much appretiate your
> help.

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