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p0420

  1. 1Gen-Tundra
    So I have been battling this issue for a few months now. I have read and researched as much as I could on my own. I don't believe that I have found anyone else that has the same conditions going on with my truck, and I am now to the point of asking for some help. If I have to replace my cat...
  2. Performance Intake & Exhaust Systems
    Hi, past month got a Tundra 2010 4.6, and few days ago, check engine ligth came on, taked to shop, and error P0420, P0430 Cats Converters. How can check if cats are really the problem? Tundra its 96 k... Any aftermarket cats that recommended? thanks for your help...
  3. 1Gen-Tundra
    I just got a 02 tundra with 3.4L v6 and the catalytic converter code p0420 going off. What is the best approach to fix problem? 1) replace catalytic converter 2) replace with some exhaust system (without making a ridiculous matchbox car sound) 3) don't worry about the light I do believe the cat...
  4. Highlander
    I posted last June at 186,000 miles: My ’03 4 cylinder Highlander has been throwing intermittent P0420/P0430 codes for over two years. The CEL came on last August and stayed on for good. I ignored it for nearly a year after speaking with a Toyota mechanic who said that it could be the O2...
  5. 1Gen-Tundra
    Q1. I am trying to purchase a refurbished, OEM, drivers side Cat from "Smith Cat", a company out of Illinois. They offers these guaranteed OEM cats for about half the price of new, and they've got a pretty good warranty. When I gave them ALL of my info they said that there were several options...
  6. 1Gen-Tundra
    OK Guys, I need your help. I have a 2001 Tundra with 215K miles; I'm the original owner and I'm a lady! I've taken the truck to several different mechanics and I cannot get a straight answer about this code; they simply want to replace the catalytic converter. Also, I've been told to go to a...
  7. Intake and Exhaust
    My engine light was going on and off periodically, then finally stayed on. I had the muffler replaced this past weekend because of a hole in the top. While it was at the shop, the technician pulled a P0420 code and reset it. Two days later the light came back on so I took my truck to AutoZone...
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