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Re: 1999 S10 reflash US/CA emissions PCM to Federal
Posted to Emissions Forum on 9/27/2021 1 Reply

Do you need to have the correct vin in the ecm? Reason I ask is you can get a junkyard ecm and do the 30 minute theft relearn and you are good to go. The vin stored in the ecm won't match the vehicle but it won't give you any issue. Login to read more.

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