[Diy_efi] [Gmecm] 181 merc 730

[Avery Nisbet]

You can hack the V6 prom to change the cylinder count but you will not have
an ESC.  Im not sure if the ECU's run with out them.

These setup of the knock stuff.  And kinda configure the ignition too.



I'm trying to run a datsun 510 off of one of these ECU's  I found the memcal
from a quad four to work ok.  The iron duke didn't seem to work but it could
have been bad.


Oh remember to add diy_efi at diy-efi.org to your CC so everyone else can see
it.
-Avery

On Tue, Aug 9, 2011 at 3:08 PM, alan mays <truckeez at yahoo.com> wrote:

> Oh No -back to the hard to find.... thanks for your input but wouldn't a
> 730 from something with a dis work?
>
> --- On *Tue, 8/9/11, Avery Nisbet <anisbet at gmail.com>* wrote:
>
>
> From: Avery Nisbet <anisbet at gmail.com>
> Subject: Re: [Gmecm] 181 merc 730
> To: "alan mays" <truckeez at yahoo.com>
> Cc: gmecm at diy-efi.org
> Date: Tuesday, August 9, 2011, 4:46 PM
>
>
> You need the 4 banger prom from a turbo sunbird.  They have it on the
> code59 site.  Its so it will work with the ignition.
>
>
> -Avery
>
>
> On Tue, Aug 9, 2011 at 2:04 PM, alan mays <truckeez at yahoo.com<http://us.mc1618.mail.yahoo.com/mc/compose?to=truckeez at yahoo.com>
> > wrote:
>
>      OK I remember this from a while back-It would make life so much
> easier---IF I could get on the code59.org site.   Someone mentioned the
> ECM doesn't really know how many injectors its firing  ,  So here is another
> question---  should i just get a 730 or at least the eprom from a 3.1 gm to
> start with since the "shaky II" --Merky II 4 banger is 3 ltr??  would that
> simplify more as far as having to change values in the bin files?  here is a
> pic of the intake model for carbs--I haven't got a lt1 intake yet to make
> injector bung plugs to model in but they will be pointing at the back of the
> valves.
> http://www.peachparts.com/shopforum/showthread.php?p=2767390#post2767390
>
>  "Alan, a 1227730 will work with the TPI harness or the Sunbird harness.
> It MIGHT take a re-pinning of one or two wires but not have diagrams in
> front of me.
>
> Is this a turbo'd 181? That will be neat!
>
> Both the 1227749 and the 1227730 will run Code59 for boost.  The 7730 can
> not run a TBI but the 7749 can run a TBI. This is because the 1227749 has a
> peak/hold injector driver but the 7730 has only saturated driver."
>
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