16176424 PCM - is the same as?

[Carl Summers]

Hi Peter,
      I have not seen anything with light blue connectors on it....what kind
of app is it????speed density???MAF??? 4,6,8, cyl?????? ttyl
-Carl Summers

-----Original Message-----
From: owner-gmecm at esl.eng.ohio-state.edu
[mailto:owner-gmecm at esl.eng.ohio-state.edu]On Behalf Of Peter Gargano
Sent: Saturday, December 25, 1999 3:00 PM
To: gmecm at efi332.eng.ohio-state.edu
Subject: Re: 16176424 PCM - is the same as?


I'm Still trying to identify a 16176424 ECM - in relation to
North American part numbers. Any help appreciated! This ECM is
used in Holden VR models.

Here's some more info on the 16176424 ECM. It uses the same
processor as the 16188051 ECM (assumed to be a 68HC11F1). It
has a case that's 216 x 150 mm (8-1/2 x 6-7/8 inch). Memccal's
cover is a six sided flat flap, with two screws. Memcal is the
same as used in the 1227165/808 etc. The unit has two light
blue sockets that are same size as for '165/'808, but they
have a "keying" system on the sockets that prevents a '165/'808
plug being inserted unless the raised key bits are removed.

There's a picture of the PCB at:

  ftp://efi332.eng.ohio-state.edu/incoming/16176424.jpg

Here's the semiconductor list annotated with known information
(mostly from Ludis's site: http://www.cruzers.com/~ludis/):

ECU Assembly 16176424  - PCB 168C509 (4 layer)
-----------------------------------------------

Part   Number   use      pack   More information

Integrated Circuits

U1      34992   Power    15pTO  Power supply
U2      45980            15pTO  Delco 169J 9445B [same as U6]
U3  1618 0566            5pTO   Motorola
U4  1613 2083            28qfp  Allegro 9451 I451036A 736 (?)
U5      34987   o2 amp   20qfp  014 S49AL
U6      45980            15pTO  Delco 169J 9445B [same as U2]
U7      64606   SXR      28qfp  8192 UART transciever
U8      34993   IAC Drv  9pTO   IAC driver
U9      27474            28qfp
U10 1604 5153            16sop  CD4051 mux - Philips 943910Q Hnn9433 4 (?)
U11     89551            14sop  Natsemi 014 M49DG (?) [same as U14]
U12                             not found on PCB
U13 1608 4523            20sop  274 N 9447
U14     89551            14sop  Natsemi 014 M49DG (?) [same as U11]
U15 1620 2476   CPU      68qfp  Motorola E87J KQQNW95O3D (MC68HC11F1 ?)
U16     54995   CalMap   28qfp  Delco
U17     04891            28qfp  [unknown logo] 5036N655 466
U18 1612 6532            52qfp  Delco
U19     56597            52qfp  Delco
U20 1612 7472            14sop  Philips 954050Q Hnn9441 2 (?)

FETs

Q3       9707            3pTO   Int Rect 9503 7D 5E
Q7       6403            3pTO   Int Rect 9504 7L 5Z
Q10         ?            3pTO
Q11         ?            3pTO

--
Peter Gargano