Re: E30 engine problems

["Fred Wills" <Fred.Wills@xxxxxxxxxxxx>]

> Date: Sat, 9 Mar 2002 13:07:35 -0500
> From: Keith Turner <kturner@domain.elided>
> Subject: E30 engine problems
>
>  A friend is having problems with his 87 325is.  It will run fine, then
run
> rough and occasionally stumble/hesitate under acceleration.  Using a
> different ECU (from a junkyard) made no difference.  The plugs, plug
wires,
> fuel filter and O2 sensor have been recently replaced.  The check engine
> light stays on constantly and does not flash a code when the key is turned
> to on. Anyone have any suggestions?
>
> Thanks,
> Keith Turner

Keith,

On an '87 325i with Motronic 1.3 the check engine codes do not flash when
you turn the key to on.  That was only on earlier cars with Motronic 1.1.
To get the codes to flash you need to turn the key to ON, then fully depress
and release the accelerator pedal 5 times fairly quickly.  This toggles the
throttle position switches between the closed and fully open sensors.

Here is a link to the procedure and a short list of the flash codes.
http://www.unofficialbmw.com/repair_faqs/motronic.html

Hope this helps,
Fred Wills
'95 325i
BMW CCA 279863



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