I have a 2000 LE V6, 5 speed manual transmission with a perpetual P0155 code. I have checked power and ground to the connector on the harness. I have replaced the O2 sensor - verified and tested working.

I now get "Pending Code P0155." I cannot find anything online or in manuals I have access to that discusses why a code would be "Pending." Has anyone had any experience with this? Any ideas or suggestions that may help are appreciated.

 

Did you use the correct type sensor for the cars emissions system certification?

Check for a bad or intermediate wiring connection.