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International Automotive Technicians Network
Re: 1988 Buick Failing Emissions Rich
Posted to Technical Discussion Forum on 9/10/2000

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This O2 Sensor is Brand New from the dealer and acts just as the original one did so, I kinda doubt bad O2 unless both bad.

The TPS Voltage and Coolant Temp does not change when the Co goes from acc... Login to read more.