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> upstream o2 sensor
post Jun 22, 2013 - 2:16 PM
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southwest2118



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On my 7afe the upstream(front) o2 sensor has two wires one ground(brown) and one signal to the pcm(black).

I dont have that two bolt setup any more for that sensor and will need to put in a standard o2 so i was going to put in Bosch universal #11027.
my question is since its a one wire connection the sensor it self should ground out...right?


post Jun 22, 2013 - 5:01 PM
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southwest2118



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well i stuck it in and all is well
post Jun 22, 2013 - 7:04 PM
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Bitter

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Just get a universal 4 wire and don't hook up the two heater wires.


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post Jun 22, 2013 - 7:18 PM
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southwest2118



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i put that one wire in and everything is working fine, the exhaust should be a good ground, the oringinal ground was linked to others and attached at the intake mani...not like it was going straight to pcm ground or anything
post Jun 23, 2013 - 8:48 AM
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Good to know!


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