Sky_99

iTrader: (1)

Hello-

I have a Cali Spec 99 (manufacture date of late 98) Maxima. I am getting the code P0140, but my question is when I place my order which one do I need:

1. Sensor located in front the manifold/exhaust pipe before the catalyst on the left side

OR

2. Sensor located in front the manifold/exhaust pipe before the catalyst on the right side

Thank 4 the help!!
-Renee

oldngivout

iTrader: (8)

Actually neither.

P0140 refers to the rear sensor on Bank 1, which is the bank closest to the firewall.

If your profile is correct though, your y-pipe has deleted the pre-cats. Not sure why you are getting a code for rear O2, since the catalysts they would be monitoring are not there.

t0p_sh0tta

Thanks for the help. For further clarification, the car is currently throwing P0160 and P0158. I've gone through the service manual and I can't figure out which is which. I'll post up another diagram when I get home.

Thanks,
Lamar