[Diy_efi] 16191947 ECM

[don.broadus at exeloncorp.com]

I didn't know that . Thanks for the info. Maybe the ECM is typical then. 





-----Original Message-----
From: diy_efi-bounces at diy-efi.org [mailto:diy_efi-bounces at diy-efi.org]On
Behalf Of Gary
Sent: Tuesday, March 21, 2006 7:42 PM
To: diy_efi at diy-efi.org
Subject: Re: [Diy_efi] 16191947 ECM


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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