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Old 06-18-2002, 12:53 PM
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sixto sixto is offline
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Join Date: Jun 2000
Location: SF Bay Area
Posts: 20,124
M103 -- O2 sensor and X11 pin 3 relationship

What's the relationship between the O2 sensor reading and the reading at pin 3 of the X11 diagnostic port?

I've seen the O2 sensor reading oscillate in a range between 0-1V as it should and read that the voltage at pin 3 should be somewhere between 6.8-7.2V. What happens in between?

91 300SE
87 300SDL
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