RE: 89 320i Intermittent Missing

["Dejong, Paul" <Paul.Dejong@xxxxxxxxxx>]

	Ciaran wrote:

*	Hi=20

*	I'm new to the list and was wondering if any of you have come across
a =
*	very
*	strange very intermittent problem that I've been having with my 1989
=
*	320i.

*	Occasionally while cruising or accelerating the engine will die for
a =
*	second
*	and then pick up again. This results in a very annoying 'lurch' in
the =
*	car.
*	There is no spluttering or fading power loss associated with this,
the
*	engine just seems to shut of for a second and then pick up again.
This =
*	may
*	happen 4 or five times during one long trip and then might not
happen =
*	again
*	for weeks.=20

*	Once or twice the engine has just died for no reason at a steady
tick =
*	over
*	and started easily again. The car can also take a long time to start
=
*	very
*	occasionally and sometimes I have had to leave it for a few minutes
=
*	before
*	it would start. There is however no strong smell of fuel which I
would
*	associate with 'flooding' when the engine is hot. The Tick over is =
*	normally
*	a little rough but steady.

*	I have checked all Wiring to the ECU, Engine sensors, Fuel Pump and
=
*	Relay
*	and all seem OK. Otherwise everything else is fine with the Car.

*	Has anyone come across a problem like this. I am considering paying
a =
*	Bosch
*	Engine Management specialist lots of =A3=A3=A3 to run a full set of
=
*	tests on the
*	car but as it is an intermittent problem they will not guarantee me
=
*	that
*	they will find it.

*	The Motronic ECU is supposed to store fault codes. Is there any way
to
*	download and analyse these without specialist equipment or is there
any
*	other way to diagnose this problem.

*	I would appreciate any suggestions anyone might have on this either
via =
*	the
*	digest or direct email.

*	Thanks

*	Ciaran

There must be a loose connection to your ignition coil (positive or
negative). I once encountered the same problems and found the positive lead
to the ignition coil was internally broken. I had to replace it from the
fuse box on.

Regards,

Paul de Jong

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