1996 Concorde P0140 code
 

Hi,

I'm new to the forum. I have a question. I scanned my car and got a code of P0140, which I deciphered as Downstream O2S Stays at Center. Is that correct and what does it mean -- that is what do I have to replace.

Thank you for your help.
Scott

RE: 1996 Concorde P0140 code
 

that 02 sensor It means the 02 is not switching back and forth like it should so it stays at center.

RE: 1996 Concorde P0140 code
 

Does this mean I need to replace the two O2 sensors behind the catalytic converter? What do these sensors do (polution control only)? Is this a job for a handyman?

Thanks,
Scott

RE: 1996 Concorde P0140 code
 

yep the 02 behind the cat . The sensor gives the computer the info needed to make fuel time adjustments to ge the car back to 14.7 to 1 ratio. Basicly u need them.

RE: 1996 Concorde P0140 code
 

Thank you for your help.

Scott

RE: 1996 Concorde P0140 code
 

One last question if you would please, what is the torque value on these O2 sensors?

Thanks Again,
Scott

RE: 1996 Concorde P0140 code
 

good and tight they dont have one for this

RE: 1996 Concorde P0140 code
 

I just got to down to replacing the oxygen sensors, haven't put them in yet. The car is running rough and I now get an additional code of P301 (cylinder 1 misfire). Could this be caused by the oxygen sensors code P140 or is this likely a different issue?

Thanks,
Scott

1996 Concorde