has anyone tried this?

[Bruce]

I'd get a spare ecm, and or the harness ends and use the one you have, and
build an ecm bench.  That will get you thru all but the timing.
Then on the timing you'll need to monitor crank posistion, and #1s ignition
pulse, then with the time difference figure out the timing.

The aftermarket ecms are built to be easy to program, and get right.    You
very well might spend more time with this then just actually doing the
aftermarket programming.

The ecm bench will give you the coolant temp corrections, air temp (if
applicable), and would give some idea about accleration enrichments.
Bruce




----- Original Message -----
From: "Jeff Bromberger" <blownz at home.com>
To: <diy_efi at diy-efi.org>
Sent: Tuesday, June 26, 2001 3:37 PM
Subject: has anyone tried this?


> I'm getting ready to add an aftermarket computer to my honda civic... my
> concern is not the WOT tuning but rather the drivability/fuel economy type
> stuff... i was thinking that it would be really handy to have a tool that
> would log conditions in the current factory PCM to build a profile of the
> fuel and timing maps... i'm picturing two inductive probes: one for spark
> plug wire #1 and one for injector wire #1... beyond that you'd only need
the
> map sensor signal.  the software that is monitoring these signals/pulses
> could fill in the standard 2D tables for fuel and spark and give you a big
> headstart when you go to tuning the aftermarket efi system "from
scratch"...
> does anyone make anything like this?  I could definitely write the
software,
> but beyond a few basic PIC projects, i'm not that up on the hardware end
of
> things... though i imagine the hardware would be fairly simple...
thoughts?
>
> thanks,
> jeff
>
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