RE: Need help on 87 GM Buick GN ESC pin-out...

[Don.F.Broadus@ucm.com]

Looking at the module from the top where the sticker is (HKD for example)
the pins are from left to right A<B<C<D<E 
The colors of connectors varies at times but the letter designations are
always the same
A=no connection
B=+12 VDC
C=Spark knock out low/high transition with knock
D= ground
E=knock sensor input

I have 3 different connectors infront of me  (B) the +12v is usually always
pink with or with out black stripe
C= could be yellow/black or solid black D=could black/white or solid brown
E= is usually always blue
I have a lot of sensors let me know what you need before you plunk down hard
earned cash.
 
Don
  

> -----Original Message-----
> From:	Iestyn Guest [SMTP:iguest@viewlogic.com]
> Sent:	Wednesday, February 09, 2000 11:45 AM
> To:	gmecm@lists.diy-efi.org
> Subject:	Need help on 87 GM Buick GN ESC pin-out...
> 
> Hello All -
> 
> Do you know what the pin-out assignment should be for the 87 GN ESC
> module?
> I'm building up a new system using the Felpro SEFI8LO system - It requires
> a
> standard GM ESC - I wasn't sure what to buy from the local GM dealer, so I
> got an 87 Buick GN Module.
> 
> Now I have the module, but have no idea what pins to wire to the ECM,
> knock
> sensor, Power and GND etc..  The only thing I do know is that the one wire
> to
> the ECM is kept 'high' until knock is detected, and then pulled 'low' to
> ground to retard timing for the duration of the knock. - Most auto books
> show just a color coded wiring harness for 4 wires.  I don't have the
> harness and this ESC module has 5 pins!!
> 
> Please help if you know.
> 
> Kind regards.
> 
> Iestyn.
> 
> ======================================================
> Iestyn Guest                                  iguest@viewlogic.com
> Corporate Applications Engineer   Hotline 800-223-8439
> Viewlogic Systems, Inc.                 Web: www.viewlogic.com
> 293 Boston Post Road W            fax 508-460-8213
> Marlborough, MA 01752
> ======================================================
> 
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