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International Automotive Technicians Network
Re: strange O2 sensor problem
Posted to Technical Discussion Forum on 6/9/2003 1 Reply

Hi Jason,

WIthout knowing how it was running makes it a bit difficult to determine, but if there was a misfire condition, the O2 levels get skewed, being interpreted by the O2 sensor as a lean condition, thus PCM command goes rich.

HTH Login to read more.

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