Mike "Wuzzy121". Rest in peace, brother

Go Back   Tacoma World Forums > Tacoma Garage > Performance and Tuning

Notices

P0420/p0430

Reply
 
Thread Tools Search this Thread
Old 03-04-2010, 06:04 AM   #1
KwanX [OP] KwanX is offline
Junior Member
KwanX is on a distinguished road
Navy: Bubble Head
Name: RB
Joined: Feb 2010, #32102
Location: TPA
Gender: Male
Posts: 11
KwanX's Tacoma Gallery
P0420/p0430

Morning - been reading all the threads on this for the past few hours.

2006/V6/50K miles. Codes scanned at Autozone, took codes to dealer, they said replace pass/front O2 sensor. Ordered one, changed. Code still there.

-I did not do the neg batt cable off to reset yet, but will do today and see what comes up (or hopefully doesnt come up).


Are all 4 sensors the "same part" or do the front/rear sensors differ?

I feel silly for asking, but what is the best way to check for exhaust leaks?

Muchos Gracias.
  Reply With Quote
Old 03-04-2010, 06:14 AM   #2
If you want it bad, you usually get it bad!
Mark C. is one of the sharper tools in the shedMark C. is one of the sharper tools in the shedMark C. is one of the sharper tools in the shedMark C. is one of the sharper tools in the shedMark C. is one of the sharper tools in the shedMark C. is one of the sharper tools in the shedMark C. is one of the sharper tools in the shedMark C. is one of the sharper tools in the shedMark C. is one of the sharper tools in the shedMark C. is one of the sharper tools in the shedMark C. is one of the sharper tools in the shed
 
Mark C.'s Avatar
Navy: LCDR Mustang (Ret) - 30 yrs - Submarine and Target Service
Name: Mark
Joined: Nov 2009, #26250
Location: Connecticut
Age: 60
Gender: Male
Posts: 1,253
Mark C.'s Tacoma Gallery
I believe the sensors before the cat are different than those after the cat. You can usually find a better deal shopping on line than you can from the stealership. I replaced the ones on my 2000, buying them online at about 30%-40% of what the dealer would charge for the part. Changing them out is not a big deal.
  Reply With Quote
Old 03-04-2010, 06:55 AM   #3
:POOPCORN:
98tacoma27 is one of the sharper tools in the shed98tacoma27 is one of the sharper tools in the shed98tacoma27 is one of the sharper tools in the shed98tacoma27 is one of the sharper tools in the shed98tacoma27 is one of the sharper tools in the shed98tacoma27 is one of the sharper tools in the shed98tacoma27 is one of the sharper tools in the shed98tacoma27 is one of the sharper tools in the shed98tacoma27 is one of the sharper tools in the shed98tacoma27 is one of the sharper tools in the shed98tacoma27 is one of the sharper tools in the shed
 
98tacoma27's Avatar
Marines:
Name: Ben
Joined: Dec 2008, #11714
Location: Beech Creek
Gender: Dude
Posts: 48,265
98tacoma27's Tacoma Gallery
2006 V6 - 4.0 Front = 234-9051

2006 V6 - 4.0 Rear = 234-4260
  Reply With Quote
Old 11-27-2010, 09:08 AM   #4
Junior Member
el contrador is on a distinguished road
 
el contrador's Avatar
Name: André
Joined: Oct 2010, #45207
Location: Montreal, Quebec, Canada
Age: 39
Gender: Male
Posts: 13
el contrador's Tacoma Gallery
Hi!!

I've been reading A LOT on this P0420 problem and found out a few good thing you might like to know!!!

I lot of people have the same problem that we do, some changed everything related to emission system. Cats, o2 sensors, MAF, MAP, Temperature Sensor and still had the light coming on!!

On thing that not a lot a people think of checking is the Ethanol rating in the gasoline they use!! Toyota tacoma are set to use Gas with less then 10% ethanol... So what i did is I empty my tank and filled it back with ethanol Free Gasoline, unplug the battery to erase the codes and Guess what, no more light...

The problem with ethanol is that it doesn't burn like regular gas at all and our O2 sensors do not reconised the exhaust gas so your check engine light turn on!!!

I was using Gasoline that had 12% Ethanol and didn't know it!!

Try that and let me know what happens

Thanks
  Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Similar Threads
Thread Thread Starter Forum Replies Last Post
Code P0420/P0430 zzyzx1 2nd Gen. Tacomas 29 08-04-2013 03:15 PM
CEL with P0420, P0430, P0175, P0172 walker_txranger 2nd Gen. Tacomas 2 09-12-2012 04:50 PM
CEL P0420 and P0430 thoughts/questions ChuckLee 2nd Gen. Tacomas 3 02-04-2012 11:21 AM
P0430 Question everetse 2nd Gen. Tacomas 4 02-15-2011 05:58 AM
Check Engine Light with codes P0420, P0430, P0606 P. Bauer 2nd Gen. Tacomas 2 07-18-2009 03:46 PM


Copyright © 2014 Tacoma Forum. Tacoma World is not owned by, or affiliated with Toyota Motor Corporation.