In article >,
Lawrence Glickman > wrote:

> >Second batch down, under "Channel lab scope", the top wave form
> >again is an inductive crank sensor, shows 8 volts peak to peak AC
> >volts (suspect it's a running engine).
>
> 5 volts on a scale of 8

Okay, 5 volts, that makes 10 volts AC peak to peak.
(waveform tagged "YLO")

> >
> >700mv isn't indicative of a good crank sensor.
>
> in a 5 volt logic circuit, 0.7 volts would be considered a logic low

Given the two examples posted, his crank sensor is not capable of
achieving the voltage level that is characteristic of that type
of crank sensor, IOWs, it's kaput.