Question about 1996 Cadillac Seville CA Value

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HO2S-12 insufficient switching

We had out cadillac put on the computer because it would just die while you was driving it down the road. This is what the computer said. would like to know what is the HO2S-12 is. The auto store didn't know so we couldn't even get a part to fix it. Please help if you know!!!!!!!!!

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  • Anonymous Mar 04, 2009

    Mine hasn't started dying yet, but I get the same code out of my ck eng light. Bank 1 sensor 2. It's the pre-converter oxygen sensor. I'll bet you had idle problems before it started dying. $69'99 @ Advanced Auto. good luck.

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HO2S + heated o2/oxygen sensor 1..2 = bank 1 sensor #2. Good Luck. That should cause the vehicle to die however.. contact if you need more help.

Posted on Dec 27, 2008

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    P0037 HO2S Heater Circuit Low Voltage Bank 1 Sensor 2
    P0038 HO2S Heater Circuit High Voltage Bank 1 Sensor 2
    P0050 HO2S Heater Circuit Bank 2 Sensor 1
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    P0119 Engine Coolant Temperature Circuit Intermittent
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