SDS EM-2??????

[Bruce Plecan]

From: Andrew Ghali <andrewg at netcom.com>
Cc: Zack <zubenubi at inetport.com>
Subject: Re: SDS EM-2??????


<zubenubi at inetport.com> wrote:
>>
>>OK, lemme' set one up.  What if the car you want to work on doesn't >>have
the equivalent of delco_edit available?  In that case, getting
>>to the stage where you could actually try burning your own PROM's
>>would require dis-assembling the entire code, and then trying to
>>figure out what the heck it does.  Not an easy task for the DIY'er.

OK what about using a computer that has been read, and figured out,
and just using that one?.

>>I'm thinking in particular about the ECU of an 87 RX-7, but there
>>must be huge numbers of cars out there with similar, L-Jet derived
>>EFI systems that would be in the same boat.

Trouble is the lack of players.  Before I began 101 I asked several
times for what to pick on.  Had like 2 votes for ford, and zero for
Bosch, Magdklafmf Marelli, Mazda, Toyota, Nissan.  The winner
was gm that had a couple dozen votes.
    If I was working on an EFI engine, I'd look at all my options.
Forgive me since it's been since 84 that I did much rx7 work,
but how many degrees of crankshaft revolution is there between
rotor ignition firing,  are the injectors for an independent runner
manifold.  Do they still use 2 plugs per rotor, one several degrees late?.
    Based on those answers I'd look for a easy to replace/explore
ecm, and use that.
>
>Please keep us all informed on your Rx-7 project!  I have an '87 NA also,
>I've built a Y cable for the ECU that comes out in DB-37, DB-25, and DB-15
>connectors  to monitor the ECU, and a spare ECU missing it's connectors.
>I can get at least one more ECU for relatively cheap as FC's are starting
>to show up in the Pick-n-Pull yards around here (SF South Bay area - isn't
>Garfield out here in these parts?).  With all the house-numbered stuff in
>the box, I haven't even figured out what CPU is in the thing!
>
>Once I have a handle on my '87, we can start on my '93 and it's 3 dozen
>pnuematic valves.
>
>Andrew
>
Bruce