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Username Post: 1988 Buick Regal Ltd        (Topic#374369)
Posts: 1

Reg: 01-20-24
01-20-24 01:01 PM - Post#2866105    

1988 Buick Regal Ltd, 2.8, Auto. Anyone ever had issues reading live data, I hooked up my Modis to this thing and the ecm refuses to connect unless I put in its a 1991 gm something with a 3.1 then it shows me all the live data values. The ecm was changed by a reputable shop years ago with a new ecm, I got this from a buddy this car and i'm trying to diagnose some issues but am curious is this common, I don't recall ever seeing this before.


Valued Contributor
Posts: 3439

Loc: Lake George, NY
Reg: 11-11-15
01-20-24 06:54 PM - Post#2866119    
    In response to Lcdman

Welcome to CT, possible wrong prom in the ecu., was programmed for the 91 3.1.


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