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Old 04-28-2016   #7
KJP
 
Join Date: Sep 2015
Location: Pittsburgh
Posts: 14
Default Re: ECM Labels "SNAPSHOTS" & confirmations

Quote:
Originally Posted by WVZR-1 View Post
The LT5 NEVER had a "programmable" PCM similar to those used in the LT1/4 '94+ production.

I posted this "as complete as I've been able to determine" from SPO and other sources back in 4/14 I believe.

Attachment 3432

I used this GM TIS application to confirm most of this information prior to 2012 - at that time TIS was OPEN to all. It's a subscription service now from ACD.

https://tis2web.service.gm.com/tis2web

Yes on the bar code but that SCAN would only confirm "originality" to match production ECM which I believe to be "line 3" and likely the Delco controlled assembly number. A SCAN of the ALDL with a "service PROM" would display the service SCAN code from my chart. In the chart I posted the only discrepancy that I found and I'm quite sure is an "error" in line 5 - 1992. The BPPA I believe was only a PROM update to the original. I had several of those NOS and sold them.

I still have a few NOS GM# 16175910 BATL which is in the charts but using SPO INFO is an EXPORT only PROM.
I learned something new today thanks for the info. I just assumed that all ECM from 94 to 96 were sealed and programmable didn't know that the 94 & 95 ZR-1 were not. I'm only familiar with the 90 & 91 ZR-1 but from your information they used basically the same style ECM up to 95. Thanks again.

Ken

Last edited by KJP; 04-28-2016 at 10:01 AM.
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