Possibly OT, ??s about a GM feedback Q-jet

[ae2598 at wayne.edu]

Maybe "electronic spark control" is the wrong buzzword for this system.  I
figred that if the spark was controlled electronically, then you wouldn't
need a vacuum can and weights/springs!  The only distinguishing factor
between  this dizzy and a plain-vanilla HEI is the 5-pin module and the
extra wiring harness coming out the back.  If I have my way, there'll be
NO distinguishing factors :)

 On Fri, 9 Mar 2001, Programmer wrote:

> Hmmm...with electronic spark control ? I know they used 7 and 5 pin modules
> throughout
> those years....right back to the early 80's.
> 
> Lyndon.
> ----- Original Message -----
> From: Bob Valentine <bob at tecmark.com>
> To: <gmecm at diy-efi.org>
> Sent: Friday, March 09, 2001 3:58 PM
> Subject: Re: Possibly OT, ??s about a GM feedback Q-jet
> 
> 
> > It uses a 5 pin module, have one here on my desk....
> >
> > -> Bob Valentine
> > -> bob at tecmark.com
> >
> > At 07:59 AM 3/9/2001 -0700, you wrote:
> > >I thought that ESC system used a 7 pin module ? I don't think the PCM (or
> > >ESC computer) is doing
> > >anything anyways...I believe you jumper "A and D" on the 4 wire from the
> > >dissy to bypass the computer.
> > >
> > >Lyndon.
> > >----- Original Message -----
> > >From: <Chipsbyal at aol.com>
> > >To: <gmecm at diy-efi.org>
> > >Sent: Thursday, March 08, 2001 9:08 PM
> > >Subject: Re: Possibly OT, ??s about a GM feedback Q-jet
> > >
> > >
> > >> I'll try to help you here, it's been years since I've fiddled with
> these.
> > >First, you don't have a mixture control solenoid. That solenoid actuates
> to
> > >enlean the accelerator pump shot when the ecm so desires. It can be
> > >disconnected with no problems, except a persistant hesitation may finally
> > >clear up. The distributor is part of a ESC system. It can be converted to
> > >non-esc by disconnecting the four wire connector and jumping two wires on
> > >the dist side of the connector. Now here my memory gets a little foggy.
> If
> > >you can tell me the colors of the wires and what position they are in the
> > >connector, I can tell you which two to connect. There is a green, black,
> > >brown and the last one. The truck won't run with the connector
> disconnected.
> > >I used to get quite a few no starts with this system. The customer always
> > >opted for the wire fix over the ecu replacement.
> > >> AL
> >
> >> -------------------------------------------------------------------------
> -
> > >--
> > >> To unsubscribe from gmecm, send "unsubscribe gmecm" (without the
> quotes)
> > >> in the body of a message (not the subject) to
> majordomo at lists.diy-efi.org
> > >>
> > >
> >
> >---------------------------------------------------------------------------
> -
> > >To unsubscribe from gmecm, send "unsubscribe gmecm" (without the quotes)
> > >in the body of a message (not the subject) to majordomo at lists.diy-efi.org
> > >
> > >
> > --------------------------------------------------------------------------
> --
> > To unsubscribe from gmecm, send "unsubscribe gmecm" (without the quotes)
> > in the body of a message (not the subject) to majordomo at lists.diy-efi.org
> >
> 
> ----------------------------------------------------------------------------
> To unsubscribe from gmecm, send "unsubscribe gmecm" (without the quotes)
> in the body of a message (not the subject) to majordomo at lists.diy-efi.org
> 
> 


----------------------------------------------------------------------------
To unsubscribe from gmecm, send "unsubscribe gmecm" (without the quotes)
in the body of a message (not the subject) to majordomo at lists.diy-efi.org