[Gmecm] Injector pins

[Robin Handley]

Thanks Bill.

Why does the 749 have 2 pins for one bank and 1 for the other!?

I only need to run 4 high impedance injectors, so plan to just use one ECM
pin for the -ve side of all the injectors, and another ECM pin for the
ground connection. I'm trying to be sure which pins to use on a 727 when
running $58 code. :-)

BTW: Should the ECM pin to ground connect to the battery -ve terminal or the
engine?

Robin

----- Original Message -----
From: "Bill - Comcast" <b.shaw at comcast.net>
To: <gmecm at diy-efi.org>
Sent: 03 August 2006 14:03
Subject: Re: [Gmecm] Injector pins


> To handle the current.  The '749 has two pins for one bank but only one
> pin for the other bank.  When I retrofitted the injector drivers in the
> '749 to handle the 8 P&H injectors in my 928 I also commandeered an
> unused pin for the 2nd injector bank to help carry the current load.
> http://p-928.home.comcast.net/749mods.html
>
> 8 injectors @ 4 amps each running near full on (6500 rpm) is a LOT of
> current!
>
> hth,
>
> Bill