Thanks for your help. I changed the O2 sensor and everything is working well. No more P0138 codes. Thought I would post what I found when installing the sensor so it can help somebody else out. If you have an AWD vibe(1st generation), the sensor connector is located under the passenger front seat. J...

How do you remove the front door scuff plate(located right beside door sill)that holds down the floor carpet? I need to remove it on the passenger side to access the wiring harness for replacement of the oxygen sensor. My Vibe is AWD and according to service manual harness disconnect is located quit...

Thought it would be cool if people posted how many kilometers or miles they have on their Vibe. I will get this thread started. 2005 Pontiac Vibe AWD-302,000 KM

I have a 2005 Pontiac Vibe AWD with 302,000 KM on it. It is starting to throw P0138 fault codes. From the research that I have done on the Internet, it looks like this is the oxygen sensor on the catalytic converter. Is this correct? If so, it looks like the wiring harness disconnect is under the ca...