[Diy_efi] GM 2.8/3.1 DIS ignition bench stimulation, the software solution

[WopOnTour]

hahahaha damn spelling checkers
That's Virtens not Virgins LOL
http://www.virtins.com/page2.html#Signal%20Generator
WOT
----- Original Message ----- 
From: "Tomas J. Sokorai Sch." <tsokorai at xperts.cl>
To: <gmecm at diy-efi.org>; <diy_efi at diy-efi.org>
Sent: Friday, May 19, 2006 1:09 PM
Subject: [Diy_efi] GM 2.8/3.1 DIS ignition bench stimulation,the software 
solution


> Just in case somebody else needs this info in the future:
>
> The answer to my questions if a PC soundcard output was enough to trigger 
> a GM
> 2.8/3.1 "6+1" (6 each 60deg appart & sync at +10deg) trigger pattern DIS 
> module,
> is :  yes!
>
> The module requires quite a strong trigger signal.
> Mine started sparking at almost the full volume of my laptop's earphones
> output.
> I wrote a quick, dirty and ugly program (C, Linux, ALSA, GPL) to generate 
> the
> pulse pattern at (near) any desired simulated RPM. If anybody wants it, 
> its
> at:
> http://www.sokorai.cl/GMcrank_sim.c
>
> So, the reason my module is not working in my retrofit, is because the BMW 
> TDC
> sensor is not able to produce strong enough pulses.
> I think a little opamp circuit can help me to solve this.
>
> -- 
> Tomas J. Sokorai Sch.
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