03 Toyota Tundra 4.7 P0430

So does it look like it is a bad cat or O2 sensor.

03 toyota tundra 4.7 p0430. Sat Aug 25 2018 1210 am Vehicle. What should I do first to eliminate possible problems before. That would be the Bank 02 rear sensor causing the code.

Thought I had it beat with changing the mass air flow sensor but after the truck cooled off i took it out again and the check engine light came on. I checked the codes and got P0420 P0430 Codes I was thinking of changing the four o2 sensors but a mechanic recommends that I should try catalyst bypass. Asked Aug 26 2017 by eldie 104 points WHERE IS BANK 2 LOCATION.

Answered in 9 minutes by. This video will give you some tips to try for clearing Diagnostic Codes P0420 and P0430 BEFORE you spend a huge amount of moneyToyota Catalytic Converter Fi. Top Causes of P0430 in the Toyota Tundra.

I took out my bank 2 02 sensor which looked very clean and compared my ohms to the front 02 sensor. Dave Nova ASE Certified Tech replied 9 years ago. May 26th 2021.

2003 TOYOTA SEQUOIA 47 bank. Here are the most common ones. 2003 TOYOTA TUNDRA EWD491U 3 HOW TO USE THIS MANUAL B This manual provides informat ion on the electrical circuits installed on vehicles by dividing them into a circuit for each system.

The local Toyota dealer will diagnose for 89 but I worry their tech will plug it all in see the code and just default to a bad cat. In this video we discuss codes p0420 and P0430 common to Toyota 24L VVT engines in Highlander Camry Rav4 and other vehicles. I had a tune up done on a 2003 Toyota RAV 4 and now the P0420 and P0430 codes came on.