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Discussion Starter #1 (Edited)
2005 Nissan Altima throwing P1271 code.

I have replaced the o2 sensor and checked the fuse.

I was talking to a mechanic on justanswer who told me to test the terminal housing for slots 2 and 6 but wanted me to somehow test them while plugged in, which doesn't make any sense.

I tested the housing with the sensor unplugged (since there is seemingly no other way to access the parts to test with multimeter needles) and slots 2 and 6 read about 2.16-2.22.

EDIT: figured out backprobe. Need extensions.

Can anyone please tell me what to do at this point with the sensor not sending an electrical signal?
 

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Discussion Starter #3 (Edited)
This is the new sensor plugged in.
I'm assuming I place the multimeter needle through the back end.
I need to purchase an extension to do that.

When I get the backprobe extensions,
with the engine running,
what voltage should each wire read?

And if the voltage is low, what should I do?
 

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Discussion Starter #4
I should also add that I've tried clearing the p1271 code but as soon as I drive for a few minutes the code comes back.
 
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