O2 Sensor #1

[elvis]

check engine light came on - bad O2 sensors
i replace all 4 and the front ones are not working

what am i missing? i pulled them and put a torch to them and they tested good.
i am trying to find a wiring diagram to check if i have a short.

any thoughts?

 

[Disco Mike]

Always give the fault code numbers if you want help since there are at least 16 just for the 02's.
Did you clean you electrical connection before reinstalling them?

 

[elvis]

Mike
the fault code #P0130 b1s1/b2s1

thank you

 

[Disco Mike]

That code is only for B1/sensor 1 and does not include bank 3.
That being said, you will need to replace both front sensors to keep your air/fuel mixture the same for both banks.
Is this something you are planning to do yourself?

 

[elvis]

I have replaced them and they do not work. I am unable to figure out the issue. I replaced all 4 and with the use of a buddy's computer, they do not have a voltage flux like the rear ones. I was thinking a fuse, but they don't have one? And then maybe a short but I can't find where they would plug into the emission control.

Thank you

 

[Disco Mike]

Not a fuse issue. When you installed the new 02's, did you remember to clean all the grease and oil out of the electrical connection, if not, that can be your issue.