Help with an '86 1/2 Corvette

[Shannen Durphey]

The 86 Vette 1227165 pinouts are different from 87, which are different from 88,
which may be different from 89.  The differences are subtle, i.e. the overdrive
request and control lines for a 4+3 trans are in different locations in different
years.  There's a pinout on the gmecm web site which will be correct for most of
the major components. 
http://www.diy-efi.org/

As far as needing all the technical info for the ecm, you'll have to settle for
what's available to list members if you use the list resources.  Look around the
gmecm web site, download the archives, and take a brief trip to the DIY_EFI site to
get those archives also.  Make sure you look at the gmecm related pages, too.

Good luck and enjoy the project.
Shannen


Bruce Plecan wrote:
> 
> From: "Kieran Alexander Cox" <kcox at polymail.cpunix.calpoly.edu>
> > I am new to this mailing list and to modifying my ECM. Does anyone
> > know the type of ECM that is installed in my 'vette? Some online research
> > has shown it to be a 1227165. Although I am not sure if GM did something
> > different for the Corvette. Basically I need all the technical info on
> > the ECM and the pinouts.
> > I designing an E/T Timer and on-the-fly scan tool as my senior
> > project for the car. Any help is greatly appreciated!
> 
> There is just tons of ALDL info. in the archives.
> For ET though, the sampling rate is really too slow.
> There is an edge card series of terminals in the ecm that are on the actual
> PCB that might be the best way to tackle the timer.   Even better might be
> just using the VSS input.
> Bruce
> 
> > Kieran
> > P.S. I am looking for a summer intership in this field. If you have any
> > info or would like my resume please mail me back directly. Thanks again!
> 
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