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2012 Cadillac CTS Couupe 3.6liter

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1 year 5 months ago #58846 by mike126
2012 Cadillac CTS Couupe 3.6liter was created by mike126
Has anybody seen a upstream O2 sensor signal from a 2012 Cadillac CTS read min @ 1 volt to max 2volts. Sensor signal is switching rate is good. Rpm is at around 2500.
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1 year 5 months ago #58849 by Noah
Replied by Noah on topic 2012 Cadillac CTS Couupe 3.6liter
That's a pretty good one. The only time I have seen higher than 1v on an oxygen sensor was because of a short to the heater circuit. Switch rate was really good on that one! (Because it was pwm driven by the heater control circuit, lol)
"Ground cannot be checked with a 10mm socket"

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