Re: 1992 lumina euro 3.1, ecm location?

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Posted to Technical Discussion Forum on 8/19/2003

Hi Bill,

If the ECM part number ends in "7727", you may want to replace it and the PROM even if it passes a "tap test".

The 7727's were notorious for strange failures, causing all kinds of idle and stalls at stops complaints. Login to read more.