ECM replacement 91 Le Sabre

Old 11-10-03, 04:04 PM
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Question ECM replacement 91 Le Sabre

How hard is it for a regular joe to replace ecm on 91 LeSabre?
Old 11-10-03, 05:12 PM
Join Date: Dec 2001
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it really isnt very hard to replace just remove old ecm remove prom and install prom in new ecm and reinstall, should probably have battery disconnected when doing this.
exactly why are you replacing it?
check the link below may have more info on location and removal and install.
Old 11-11-03, 06:36 AM
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What is the actual problem with the vehicle? ECM's do not usually go bad.

Last edited by twelvepole; 01-05-04 at 05:54 AM.
Old 11-11-03, 05:53 PM
mike from nj
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in my very limited experience of older GMs, i've seen a few go bad, and a remanufactured can usually be had for under $150 depending on the application.


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