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Re: 2008 Subaru Imprezza WRX failed TSI
Posted to Emissions Forum on 3/15/2014 16 Replies

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I replaced the rear oxygen sensor.

Pre and Post capture of rear oxygen sensor activity during test drive

Between the pending code (which eventually set but wasn't there originally) and the fact t... Login to read more.

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16 Replies Received (View Replies)