[Diy_efi] data acquisition from engine with PC soundcard

[David Gravereaux]

Marcell Gal <cell at x-dsl.hu> wrote:

>Hi guys, 
>
>Before designing my ECM (using code and board from
>efi332) I'd like to check how the current DELCO
>ECM drives the motor (at least injector pulsewidth,
>timing, spark timing and the MAF, perhaps TPS). 
>
>I was thinking of using a notebook computer and a soundcard
>(a digital multimeter for calibration), but I'd like to
>not damage nor the notebook nor the engine.
>I do not want to reassemble the DELCO code..
>(I have a TBI with 1 injector and a DIS on a 4 cyl) 
>
>Does anyone have experience in this area?
>(or knows about articles?) 
>
>thanx:
> Marcell

http://www.elektron-bbs.de/files/

osc251.zip can be found on that page.
--
David Gravereaux <davygrvy at pobox.com>
Tomasoft Engineering, Hayward, CA
[species: human; planet: earth,milkyway,alpha sector]

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