Re: No spark

[Mick <bmwmick@xxxxxxxxxxx>]

>>specifications have changed.
>>     * One strange effect was that there would sometimes be a buzzing
>>       sound from somewhere near the airbox when the Hall plug was
>>       connected and the power was on. On these occasions, the tach
>>       needle would jump around a bit. It was almost like the Hall unit
>>       was sending a rapid series of pulses to the computer for spark
>>       generation.

Bill,
   The buzzing is the coil firing both plugs.  The tach jumping
around confirms that the signals from the HES are coming at
random intervals.  What happens is the insulation on the harness
wires breaks down and the signals from the sensors get confused
on their way to the Motronics.

Mick
Tucson

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End of oilheads-digest V3 #130
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