Limp home mode

[Wilmar Gómez]

----- Original Message -----
From: Bob Wooten <r71chevy at earthlink.net>
To: <gmecm at diy-efi.org>
Sent: Saturday, March 10, 2001 11:36 PM
Subject: Limp home mode


> Evening all,
>
> I am wondering if there is a document that describes the limp home mode?
> specifically what gets shut off in the ECM & what continues to run.  I
have
> been looking @ the print for the 7730 & it appears that some of the
devices
> that the CPU use when running normally get the CS taken away when in limp
> home mode.  I am off to delve into the vast expanse of the Archives &
> thought I would shoot a line out there & see if I get lucky.
>
> on a related note in the 7730, U17 looks to be kind of a watchdog type of
> chip.  mine only has the GM number (16034992) on it (maybe a cross
reference
> guide?).  does any one know what the part number is for the non GM part.
> for example there are some MUX's & some 74-138's on the CPU that have GM
> part number & they are pretty obvious, just hoping that I could get a spec
> sheet to see how it works.  AKA what are inputs, what are outputs & what
is
> the logic.
>
> thanks Mucho.
>
> Bob Wooten
> r71chevy at earthlink.net
> www.r71camaro.homestead.com
>
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