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

[Programmer]

# of pins on the module ?

Lyndon
----- Original Message -----
From: Scott Pearson <mrcad472 at bigplanet.com>
To: <gmecm at diy-efi.org>
Sent: Saturday, March 10, 2001 12:22 AM
Subject: Re: Possibly OT, ??s about a GM feedback Q-jet


> I had ESC on my 82 Chevy truck and it didn't have vac or mech advance.
>
> Scott
>
> ----- Original Message -----
> From: <ae2598 at wayne.edu>
> To: <gmecm at diy-efi.org>
> Sent: Friday, March 09, 2001 9:08 PM
> Subject: Re: Possibly OT, ??s about a GM feedback Q-jet
>
>
> > 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
> > > >
> > >
>
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> > > > >
> > > >
> > >
>
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