P0051 sienna 04

Question

Changed bank 2 sensor 1 located at top center coming out of exhaust in front of engine. Used bosch 15733 universal sensor, was getting
A diifetent code before replacing now thats gone and i get p0051 on same sensor

Answer 1

there is a service bulletin from Toyota for this problem, saying the ECU also needs to be updated you can call the toyota to see if it was updated before.

 

 

 

http://siennaclub.ru/files/TSB%20-%20%D0%BB%D1%8F%D0%BC%D0%B1%D0%B4%D0%B0%20%D0%B7%D0%BE%D0%BD%D0%B4%D1%8B%20%D0%BA%D0%BE%D0%B4%D1%8B%200031%200051%202238%202241.pdf

 

 

I would not recommened a universal oxygen sensor either. Toyota part number is 89467–08010