O2 Sensor - Toyota Tundra Forums : Tundra Solutions Forum
  • 1 Post By festerw
LinkBack Thread Tools
post #1 of 3 (permalink) Old 04-12-2018, 06:59 PM Thread Starter
Join Date: Jan 2018
Location: Rapid City, SD
Posts: 1
O2 Sensor

I keep getting a engine light for bank 1 sensor 1. replaced it twice and light will still not go away. any thoughts or suggestions. also my fuel mileage has gone down alot like to 9 mpg

Sent from my SM-G930V using Tapatalk
mikeoyen is offline  
Sponsored Links
post #2 of 3 (permalink) Old 04-13-2018, 11:08 AM
Junior Member
Join Date: Feb 2017
Posts: 253
Re: O2 Sensor

Check the wiring to it first then try replacing the other 3 also. Sometimes the rear sensors can throw the readings off. Also use Denso sensors since they seem to work the most consistently.
sg1efc likes this.
festerw is online now  
post #3 of 3 (permalink) Old 04-15-2018, 08:58 AM
Join Date: Dec 2017
Posts: 15
Re: O2 Sensor

I can see a crack gap on my 2001 downstream bank 1 O2 sensor at the connection to the pipe yet get a CEL light and code p430 (cat) bank 2 that comes and goes. And like Mike, mileage is way low.
side note-- Rust proofing frame welds & parts complete SO I think I'll do the whole exhaust.
eyeoftheaxis is offline  
Sponsored Links

Quick Reply

Register Now

In order to be able to post messages on the Toyota Tundra Forums : Tundra Solutions Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome