CloudCity
LuxCruisers
I am helping out my bud who bought a 2009 GX recently since I have a 100-series LX and like to poke around these rigs. He had the classic Traction/Engine lights pop up and I ran the codes. Showed "P0420 Catalyst System Efficiency Below Threshhold." I cleared the code and we too it for a drive of about 40-mins and the lights didn't reappear yet. I did note that my OBDii showed a reading for Sensor 2 of 80, but that Sensor 1 showed 0.00 readout.
My questions are does this indicate an O2 sensor failure, and if so, how do I determine which on on that bank 1?
Also, might this indicate a catalytic converter issue, or is it most likely an O2 sensor?
Thanks much!
My questions are does this indicate an O2 sensor failure, and if so, how do I determine which on on that bank 1?
Also, might this indicate a catalytic converter issue, or is it most likely an O2 sensor?
Thanks much!