My guess would for the engine management computer so it can advance the
retard the timing? Maybe to use as an indicator of other engine problems,
like timing?
Like I said just a guess.
David
> -----Original Message-----
> From: owner-spitfires@autox.team.net
> [mailto:owner-spitfires@autox.team.net]On Behalf Of Bowen, Patrick
> Sent: Friday, September 22, 2000 9:39 AM
> To: 'spitfires@autox.team.net'
> Subject: purpose of crank and cam sensors?
>
>
>
> While redoing the timing on my moms Park Ave with a 3.8 ltr I have run
> across a question. It has both a Cam sensor and a Crank sensor.
> I for the
> life of me cannot figure out why it needs both, as the information is
> directly related to the other. To further complicate the
> question, I have
> discovered that the magnet on the cam sprocket (that the cam
> sensor senses)
> fell off. Being covered in metal shavings I am assuming this happened a
> long time ago, yet the car still ran, and only recently started acting
> erratic. So if this was removed, and the car still ran, what is its
> purpose? If it is required to run, then how did it?
>
> By the way this is a distributorless ignition.
>
> Patrick Bowen - who is now thinking of how hard it would be to make a
> distributorless ignition for a spit.
>
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