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Re: EGR passages clogged?
Posted to Emissions Forum on 1/16/2019 5 Replies

Electronic valve, when driven to open with scan tool engine vacuum drops minimum 5". BUT (and this happened last night right before going home) Drove egr open past 80% engine stumbling, then all of a sudden egr stopped responding to commands, as if it was STIC... Login to read more.

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