Crank sensor question...

[Clive Apps Techno-Logicals 416 510 0020]

> 
> Sounds sensible to me... now what happens if I reverse the polarity of
> my CSH??


it will cause an advance (or retard) of your CSHead

Clive 
> 
> >----------
> >From: 	Bruce Plecan[SMTP:nacelp at bright.net]
> >Sent: 	23 April 1998 15:00
> >To: 	diy_efi at efi332.eng.ohio-state.edu
> >Subject: 	Re: Crank sensor question...
> >
> >-----Original Message-----
> >From: Robert Humphris <r.humphris at indigo-avs.com>
> >Subject: Crank sensor question...
> >>I have found an interesting little mod for my type of car ( Renault
> >>5GTTurbo ) which is too simple for words... but I cannot work out why it
> >works.
> > It has been found that if you swap the wires from the crank sensor, to
> >>the ignition module, the car pulls like a train from 3000rpm upwards.
> >>The engines used to run out of steam at around 6000rpm, but with the wire
> >swap, it just keeps pulling...
> >>Anyone got any ideas why this works like this?
> >>Rob Humphris
> >
> >If the pickup up in the dist uses a coil+reluctor then it generates a
> >A/C signal.  The module has a specific theshold when it triggers.
> >The faster you spin a reluctor in a coil, the greater the voltage, and
> >the earlier the signal.  IE in a GM HEI it's a bit over 1.5degrees per
> >1,000 rpm.   So depending on how it's wired/triggered you now
> >have a rpm sensitive advance or retard.  Hook a timing light to
> >a plug wire, and make the switch if the timing retards, then you
> >know it's retarding as a function of rpm.
> >Bruce      Just bought a larger Cone Shaped Hat, the Palm
> >                Impressions are still getting larger in my forehead.
> >
> >
> >
> >