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Re: 1999 S10 reflash US/CA emissions PCM to Federal
Posted to Emissions Forum on 9/28/2021 3 Replies

As always it comes to one thing only - $$$. This CALI emissions 4.3L truck will crack/rattle CAT's for breakfast. It has low original 72K miles, runs perfect - no codes - no misfires - no problems. When rich mixture + very cold high density o2 wint... Login to read more.

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