128838 ANFK ECM infos????

[Volker]

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Hi Shannen!

Thanks for your answer.

 >>You're missing a digit in the ecm part no.
Shure, that has been a typo.

Any idea how the PROM-ID might look like on the serial stream? I have
to guess the interface parameters first (again, I don't know if it's a
160 or 8192 baud interface) and I need to have at least a few known
bytes to identify the correct settings (the PROM ID should be the only
non-variable data at the stream, right?). As soon as I've got it, the
next step will be to interpret the data.

Yesterday I tried to catch data (I assembled an interface converter
using some information off the net) and with 160 baud the data stream
looks best. Every two seconds or so there is a data packet but with
unequal size (sometimes 32 byte sometimes 33 byte). I found no similar
bytes so I guess the parameters must have been wrong (160N81) or my
fresh assembled interface is buggy (or anything else).

Thanks,

Volker


At 2001-07-24 00:46, you wrote:
Hi.
You're missing a digit in the ecm part no.  The correct number is
1228838.  That
Broadcast Code was used in multiple years.

BCC= ANFK4331    Scan id= 4301    Part number= 16134330
Release date= 03/17/89    Engine size= 3.1  Trans Type= Manual trans

ECM/PCM: ECM #01228838
Used in trucks: Chevy  GMC
Possibly used in:


Options:
With    LG6 3.1L (3.1D) V6 TBI
With    MM5 MERCHANDISED TRANS MAN 5 SPD PROVISIONS
With    NA5 FEDERAL REQUIREMENTS

   ***Found!!!
BCC year is 1992

BCC= ANFK4331    Scan id= 4301    Part number= 16134330
Release date= 03/17/89    Engine size= 3.1  Trans Type= Manual trans

ECM/PCM: ECM #01228838
Used in trucks: Chevy  GMC
Possibly used in:


Options:
With    LG6 3.1L (3.1D) V6 TBI
With    MM5 MERCHANDISED TRANS MAN 5 SPD PROVISIONS

   ***Found!!!
BCC year is 1993

BCC= ANFK4331    Scan id= 4301    Part number= 16134330
Release date= 03/17/89    Engine size= 3.1  Trans Type= Manual trans

ECM/PCM: ECM #01228838
Used in trucks: Chevy  GMC
Possibly used in:


Options:
With    LG6 3.1L (3.1D) V6 TBI
With    MM5 MERCHANDISED TRANS MAN 5 SPD PROVISIONS

Crossreferencing the ecm number shows that the ecm was used primarily
in General
Motors minivans such as the Oldsmobile Silhouette and Chevrolet Lumina
APV.  The
ecm was used exclusively with the 3.1 litre tbi engine,  with both
auto and
manual transmissions.  This is a very limited application and so there
may be
very limited information available in the public domain.  If you do
find
something, please consider posting it to the list to help the next
person that
comes along.

Good luck.
Shannen


Volker wrote:
 >
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 > Hi folks!
 >
 > I've got an Isuzu Rodeo 1992 3.1l V6 which is being operated by a
 > 122838 (ANFK) ECM (I don't know if it important but this one is
 > controlling a Model 220 TBI).
 >
 > This ECM does have a 12 Pin GM connector with pins A, B and E
 > connected (other connectors are missing).
 >
 > Does anybody have some information about that ECM? I'm highly
 > interested in the serial data stream protocol at ALDL. Also I don't
 > have any info at all whether or not this ECM is supporting the 160
 > baud or 8192 baud interface (it's my guess that it's the 160 baud
I/F
 > because I found the pin E to drive the 160 baud line at all
documents
 > I found on the net).
 >
 > The same ECM has been widely used in GM cars (years 1988 to 1993 or
 > so), for example Pontiac, Chevrolet and GMC cars should have the
same
 > ECM.
 >
 > Again, does anybody have some (or lots! *s*) information about it? I
 > want to build a scan tool for it or find a working one but w/o any
 > knowlegde of the device..... you know!?
 >
 > Thanks,
 >
 > Volker
 >
 > Volker    /   Volker at VWSoft.com
 >
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