95 Buick LeSabre ECM compatible with 93?
Asked by Guru98TQ1M Apr 01, 2023 at 09:41 PM about the 1993 Buick LeSabre Custom Sedan FWD
Question type: Maintenance & Repair
Is a 95 Buick LeSabre ECM compatible in a 93?
3 Answers
beatupchevy answered about a year ago
That's like asking if men and women are compatible , the answer is no .
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No, a 1995 model could be either OBD I or OBD II but the 1993 is definitely OBD I. When replacing the ECM on the '93 you must transfer the PROM (EPROM) to the new ECM. You need a '94 or older and the service number on the new ECM must match the old one. Other than transferring the PROM no additional programming is required for a GM OBD I system. Hope that helps! Jim
no ... different designs.94+ are wayy different.
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