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Re: What's the best instrument to test an O2 sensor?
Posted to Emissions Forum on 4/7/1999 9 Replies

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Correct again Jim. Let me say it again, the viewing of an O2 waveform is not just to see if the sensor is good or bad, but to SEE IF THE SYSTEM UPSTREAM IS OPERATING PROPERLY! (i.e. fuel control, etc.... Login to read more.

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