> >      Unfortunately that particular line of cars sparks MORE than once
> during
> > a full four cycles, the second spark being weaker than the primary. This
> > makes it very difficult to reliably get a reading from the
> spark plug line
> > which is why I will use a direct tie in to an injector line. Thanks
> anyways,
>
> As long as it is consistant, there shouldn't be a problem.
>
> What is the nature of these multiple spark pulses?  Do they
> happen in short
> succession in an attempt to simulate one long spark?  Do they happen at

        I'm not quite sure, my analog scope is all I have at home and it's almost
impossible to see anything with it.

> other parts of the cycle?  If so, why?  Does a normal strobe tach work on
> this car?  I've never heard of this before, please explain.

        That's the problem, a normal strobe tach does NOT work normally, it works
OK at some RPMs but not at others. BTW I have found what seems to be a tach
signal coming from the ignition module, I have to bring my scope to the car
to see if it's what I want or not.

> The advantage of a magnetic pickup on a spark plug wire is that
> you will be
> detecting the current, not the voltage.  There will only be
> current when the
> plug actually fires.  I would at least hook one up and look at
> the signal on
> a scope before deciding it can't be done.  If you have the ability to
> capture the waveform, I'd be interested in seeing it.

        I have tried to do that but without a capturing scope it very difficult to
see anything, I do recall seeing the secondary pulse, it was there sometimes
and not others but that just might have been the sensitivity of my scope.
Thanks for the help. TTYL

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