[Diy_efi] 16191947 ECM

Thu Mar 23 19:44:48 UTC 2006

try www.akmcables.com, click on interface cables on the left side.  You
can probably make something from his OBD1 and OBD2 cable kits, or ask
him what would work.

Or how about getting an ALDL dash connector from the junkyard and wiring
it in parallel with your OBD2 connector?

--steve

> -----Original Message-----
> From: diy_efi-bounces at diy-efi.org 
> [mailto:diy_efi-bounces at diy-efi.org] On Behalf Of Charles M Slack, III
> Sent: Wednesday, March 22, 2006 4:50 PM
> To: diy_efi at diy-efi.org
> Subject: Re: [Diy_efi] 16191947 ECM
> 
> All, that's what I figured out on my son's 95 Blazer and 95 Buick.
> Unfortunately I haven't found an affordable scanner to do it.
> I have two very good scanner set ups for GM OBDII, FORD, 
> Chrysler, and most foreign that I care about. Any ideas on a 
> scanner that will read the Orphan OBD I with OBD II connector.
> Tried the ones at Autozone, with very little luck. They must 
> need a connector cable adapter to get the right pins connected.
> Any ideas? or experiences that work?
> Charlie Slack
> Austin, TX
> 
> don.broadus at exeloncorp.com wrote:
> 
> >Your analysis is right on the money.
> >
> >
> >
> >
> >
> >-----Original Message-----
> >From: diy_efi-bounces at diy-efi.org 
> >[mailto:diy_efi-bounces at diy-efi.org]On
> >Behalf Of Tom Visel
> >Sent: Wednesday, March 22, 2006 1:48 PM
> >To: diy_efi at diy-efi.org
> >Subject: Re: [Diy_efi] 16191947 ECM
> >
> >
> >There is no "request" line you can ground at the ALDL to tell the 
> >computer that you want it to blink the codes on the check 
> engine lamp.
> >You must use a scan tool.  It's strange because it's 
> "adolescent" - not 
> >quite the capability of the OBD-II stuff, but not as simple as the 
> >older stuff.
> >
> >It's not you.  It's the engineers and bean counters at GM.  They get 
> >kickbacks from the Hair Club for Men, so they developed a 
> strategy to 
> >make us scratch our heads more often.
> >TomV
> >
> >Gary wrote:
> >
> >  
> >
> >>Maybe it is me, but I don't understand
> >>
> >>    
> >>
> >>>This is one strange ECM for 1994.
> >>>      
> >>>
> >>The the '94 and up LT1 equipped GM 'F', 'Y', and 'B' body vehicle 
> >>(P)CMs could not have SES codes read by connecting any terminals 
> >>within the ALDL connector.
> >>
> >>GAS
> >>
> >>----- Original Message ----- From: <don.broadus at exeloncorp.com>
> >>To: <diy_efi at diy-efi.org>
> >>Sent: Tuesday, March 21, 2006 5:26 PM
> >>Subject: RE: [Diy_efi] 16191947 ECM
> >>
> >>
> >>Thanks for your reply. This is one strange ECM for 1994. 
> Without the 
> >>"B" term in the ALDL you can't short "A" and "B" together 
> to get the 
> >>SES lamp to flash the codes. Looks like scan tool only.
> >>
> >>
> >>don.broadus at exeloncorp.com wrote:
> >>
> >>    
> >>
> >>>My friend ordered a Hypertech programmer for the Vette and 
> the Tech 
> >>>support guy told him it was OBII I don't have the PCM number.
> >>>
> >>>
> >>>-----Original Message-----
> >>>From: diy_efi-bounces at diy-efi.org 
> >>>[mailto:diy_efi-bounces at diy-efi.org]On
> >>>Behalf Of Gary
> >>>Sent: Monday, March 20, 2006 8:31 PM
> >>>To: diy_efi at diy-efi.org
> >>>Subject: Re: [Diy_efi] 16191947 ECM
> >>>
> >>>It is common to find '95 GM F bodies with the OBD II ALDL 
> connector, 
> >>>but they indeed have an OBD I PCM on board.
> >>>I question that vette being equipped with an OBD II PCM.
> >>>In regards to early or late notation, either it is an OBD I or II.
> >>>      
> >>>
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> >>
> >>
> >>    
> >>
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