User Tag List

Reply
 
Thread Tools Rate Thread Display Modes
Old 09-26-2024, 02:33 PM #1
lpell7 lpell7 is offline
Junior Member
 
Join Date: Jan 2022
Location: Dallas
Posts: 18
lpell7 is on a distinguished road
lpell7 lpell7 is offline
Junior Member
 
Join Date: Jan 2022
Location: Dallas
Posts: 18
lpell7 is on a distinguished road
Exclamation Engine Code p0456 and p0430

Question for the Forum.

Had a check engine light over the summer that I took into a local mechanic (P0456-small EVAP leak detected). Did not think too much of it and they replaced the Purge Solenoid which took away the light for about a month.

Light just came back on and went to see the engine code and it came back as another p0456 and this time a p0430 (CAT operating under efficiency, Bank 2).


Called the mechanic kinda upset that it came back on and this time with the Cat code as well, they said they'd take a look for free but wondering what it could be. My guess is that some of my tubes/clamps are old and rusted (bought the 4runner from my in-law who lived in NJ, surface rust on vehicle but i live in TX).

Wondering if anyone has had this experience and what y'all did to fix it. I'm really hoping I do not have to touch the Cat, car runs and operates smoothly.
lpell7 is offline   Reply With QuoteReply With Quote
Old 09-28-2024, 11:07 AM #2
Cezar Cezar is offline
Member
 
Join Date: Nov 2014
Location: Kentucky
Posts: 99
Cezar is on a distinguished road
Cezar Cezar is offline
Member
 
Join Date: Nov 2014
Location: Kentucky
Posts: 99
Cezar is on a distinguished road
90% sure those two codes are unrelated and you just have a tired cat in addition to the typical evap issues.
Cezar is offline   Reply With QuoteReply With Quote
Old 10-01-2024, 01:42 AM #3
gaber6 gaber6 is offline
Member
 
Join Date: Aug 2017
Location: Ohio
Posts: 629
gaber6 has a spectacular aura about gaber6 has a spectacular aura about
gaber6 gaber6 is offline
Member
 
Join Date: Aug 2017
Location: Ohio
Posts: 629
gaber6 has a spectacular aura about gaber6 has a spectacular aura about
Could just be the exhaust donuts. I replaced all my emissions related items, and it ended up being a slight exhaust leak between the cat and rear O2 sensor.
If you decide to replace the manifolds, it is simple, and I have one OEM with life left and one new aftermarket that I never put on for sale in the for sale thread as the donuts fixed my issue and I never put the driver side replacement on. Hopefully you don't need the replacement, but I'll hook you up if you decide to try..
gaber6 is offline   Reply With QuoteReply With Quote
Reply

Tags
back , cat , code , engine , light

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not 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 On

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
p0420, p0430, and p0456 idk what to do othompson824 4th Gen T4Rs 2 01-22-2024 06:02 PM
Code P0456 - When its not the gas cap Elan750 4th Gen T4Rs 56 09-01-2023 08:50 PM
p0456 code dhuang 5th gen T4Rs 15 02-03-2019 02:05 PM
08 v6 check engine code P0430 cangler Problems & Warranty Issues 12 05-06-2018 03:58 PM
2006 4-Runner XSP V6 - P0456 Engine Code luke87gt 4th Gen T4Rs 2 07-27-2015 07:03 PM

Powered by vBadvanced CMPS v3.2.2

All times are GMT -4. The time now is 06:37 PM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2024 DragonByte Technologies Ltd.
Feedback Buttons provided by Advanced Post Thanks / Like (Lite) - vBulletin Mods & Addons Copyright © 2024 DragonByte Technologies Ltd.
User Alert System provided by Advanced User Tagging (Lite) - vBulletin Mods & Addons Copyright © 2024 DragonByte Technologies Ltd.
***This site is an unofficial Toyota site, and is not officially endorsed, supported, authorized by or affiliated with Toyota. All company, product, or service names references in this web site are used for identification purposes only and may be trademarks of their respective owners. The Toyota name, marks, designs and logos, as well as Toyota model names, are registered trademarks of Toyota Motor Corporation***Ad Management plugin by RedTyger
 
Copyright © 2020