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Re: O2 sensor circuit diagnostics, 92 LeSabre
Posted to Technical Discussion Forum on 5/14/2001 4 Replies

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Hi Romain,

I voltage drop tested the grounds at the ecm and the block and battery, they all showed good, 9 to 12mV. I used the O2 ground (BD3? circuit 413?) for my ground point with the Vantage. I t... Login to read more.

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