ECM's Exchange? Can a 1227303 replace 1227165?

[Peter Gargano]

According to Ludis (I recently asked the same question in relation to a 
Le Mans - this uses the 1227303) the '303 is missing quad driver
U3, which is closest to the middle of the driver area. U3 goes to I/O 
connector pins...

  U3-3   A3  (Can Purge)
  U3-5   D12 (Burn-off relay)
  U3-11  A7  (TCC solenoid)
  U3-13  C2  (A/C Clutch Relay)

The functions in brackets refer to I/O pin usage with the BUA code 
(eg, 5.0L F-body V8) - the vehicle it came out of may have different
usage. So, you probably can't use the ECM on an auto vehicle with A/C 
and a MAF sensor - on a manual, MAP, non-A/C vehicle, you should have
no trouble (caveat emptor!).

Why did I take so long to answer this question?  Well, I was hoping that
someone would have a schematic for a vehicle using the '303 (eg. Le Mans)!
Anyone offering?

Peter.

Mark Romans (ICQ#66838770) wrote:
> 
> I was at the wrecking yard today and saw a 1227303 that looked cherry and
> ludis's web page shows that the 1227303 is a 1227752 with one missing quad
> driver.  the 1227752 is a 122165 with a short case?
> Anyone have a clue if a 122303 will replace a 1227165?  I'd like to have a
> spare 1227165 if this will do it, it would be great!
> Thanks.
> Mark
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