Benching ecms

[Joe Boucher]

Boy, sounds great.  Wish I could have figured that out.

At 06:03 PM 8/23/98 -0400, you wrote:
>While some of those really well versed in reading code, have
>another way to go, for the rest of us mortals, ya need a bench.
>Seeing the stuff work is amazing.
>  Once you get some numbers about how some of the stuff triggers
>that will help your search.
>  I've just now gotten an O2v signal, and while from from perfect it
>puts the ecm into closed loop.
>  I used a 4017 running off a injector control terminal.  Then divided by
>5.  Then split the voltage drop off a LED that fires off a opto
>isolator,  the dividing resistors are 10K.  So the ecm sees one
>O2 (.9v) pulse every tenth ignition pulse.
>  Needs to go to a 555 or something for a signal shaping.
>Anyway, that's today's news
>Cheers
>Bruce      ISP changed modems 4 days ago, and for some reason
>                it changes a FFF on the 747 bin to 00, try finding that.....
>                Staff wants to go back to work on the CDI project,  I think
>                they want some electro shock therapy
>
Joe Boucher
'70 RS/SS Camaro  '81 TBI Suburban