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Does the ECM have to be reflashed?

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01-08-2019, 02:49 PM	#1
dmccay0878 Registered User Join Date: Jan 2018 Location: Bristol, PA Posts: 11	Does the ECM have to be reflashed? Just starting my research on doing the LS swap to my 68 C10. If i buy the engine, trans, pedal, ecm, etc all from the same donor car, does it need to be reflashed? If so, why?

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