P0156 Toyota -

Question

Question - Where is the oxygen sensor located on a 2002 Toyota Tundra 4.7 liter; is it pre-cat or post-cat?? The vehicle has 123,00 miles on odometer, might it be best to replace BOTH O2 sensors?? Thanks!

Answer 1

Hi there,

This code is for bank 2 sensor 2. This is the passenger side of the truck AFTER the converter.