Re: Crossfire SES driver & 7747

["Kevin Reynolds" <kereyn@gte.net>]

Checked the distributor and injectors, and all sensors are sending good
readings so the wiring looks good. I just would have figured that pulling
the SES driver board would have broken the link from ECM to the light.
I'm still not sure how these drivers work.
In theory, what should happen if I plug the original driver back in?
Is there any reason it would overload the circuit?
I'm just curious if putting it back will stop the through put, but don't
want to short the new ECM.

Kevin R

>   Somehow you've got the SES connected to the ecm..
> I'd go thru ALL your grafting and make sure everything is right.  I mean
> from ecm connector to all the inputs, and outputs (meaning from one end of
a
> wire to where it terminates) (yet alot of work, but ya don't have anyone
to
> look at but yourself), and figure out what you've done.  If you screwed up
> one wire, then a second would be easy to do too.
> Grumpy
>
> | I duno what happened. I cut the connectors off the stock harness and
> spliced
> | in the connectors form a 91 PU out of the salvage yard. Before I hooked
up
> | the 747 I found what looks like the SES driver thingy pictured in my
> Camaro
> | service manual, opened the top and pulled out the little green
board(which
> | looks like the driver pictured in said manual). I have a scanner so I
> | figured I'd do with out the SES for right now and wasn't sure how the
> driver
> | was wired and what would happen if I just ran it and the 747. Anyway, I
> | started the car and noticed that when flipping the scanner thru the
modes
> it
> | would kick on the SES light when I passed the ground mode. I then
> | disconnected the scanner and grounded A & B using my high tech paperclip
> and
> | got the flashing 12 code. So at this point I have no idea why it works.
> | Either I pulled the wrong driver( can't think what else would use one)
and
> | the SES is working with both the internal and external drivers in line,
or
> | somehow the external driver is wired so that there's a connection
between
> | ECM and SES light and I can just leave the old driver unplugged.
> | What is your experience with what it should do with the driver in line?
If
> | it wouldn't short out or blow up anything I will plug it back in and see
> if
> | I lose the SES.
> | Also, Please let me know (since it seems to work)if just leaving it like
> | this will screw up anything. Can't see any reason to cut and rewire for
no
> | reason.
> |
> | FWIW, the scanner is reading all sensors fine, and reading no codes.
> |
> | Kevin R
> |
>
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