two ECMs or WHAT

[Shannen Durphey]

1228322 is the ecm.  The part inside sounds like the memcal. 

1228784 is most likely the bcm, body control module.  It handles serial
communications for dash, a/c, airbag, and other components.  Bcm's often control
hvac systems, diagnostics, interior and exterior lighting jobs, keyless entry, and
more non powertrain related components.

The engine calibration data will be in the memcal with the ecm.

Shannen

abdulkarim alsaif wrote:
> 
> Hi, this is my first post.I am very new to the subject. I pulled two ECM
> like things out of my 4.5L cadillac fleetwood 1989. one has a serv.
> #01228322 and two chips mounted on an adaptor(one with a sticker saying
> "delco ALCK6014" ond the other has a #16082239)is this the memcal?.the other
> box(serv.#01228784) has a 27C128 EPROM with a sticker saying "delco
> AHSD2562".Please guys educate me in this,which is which amoung the two black
> boxes!,as far as tuning, which is the one.I pulled a bin file from the
> archives that has a #1228322 and want to compare it to emages I dump from
> the chips but do not really know where to start.I feel there are too many
> numbers in my post but what can a novice do?!. thanks very much in advance.
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