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Toyota Tacoma Catalytic Converter Issues

11 messages, Last post on Feb 05, 2009 at 10:09 AM
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Replying to: uncle_shlomo (Mar 26, 2007 1:40 pm) |
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I have a 1996 Tacoma, 2WD, V4. About two years ago, I had a spark plug go bad, and I had to replace the spark plug wires because the wire on that same cylinder had a pretty bad crack. Not a big deal, although I had to drive it for a few days in that condition before it was replaced(admittedly this wasn't a good idea, but at the time I had no other options). A few months after that, my check engine light came on, with the "catalyst efficiency below threshold". I had it repaired, which ended up requiring a new catalytic converter, EGR valve and exhaust manifold. Fast forward to about a month or two ago, when I had another spark plug/wire go bad, both on the same cylinder again. I repaired it immediately that time. About two weeks ago, my check engine light came on again...again with the catalyst efficiency code. I believe that there is an underlying issue of some kind that's causing this to keep happening(one that the lovely people who repaired my car the first time clearly missed/ignored). Does anyone have any idea about what could cause this to keep happening?
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Replying to: famousamos0307 (Aug 11, 2007 7:11 pm) About 2 years ago my O2 senor was bad and had to be replaced. Now I have EGR and CAT issues but the truck is running fine. No plug issues like yu had, that I know of and nothing mention from the Toyota diag I had done. I think there is a broader issue with quality on these parts. Any one else having EGR and cat issues? |
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Hello, My catalytic converter was stolen 2 nights ago, and am having difficulty determining what to replace it with. Some specifics: '04 Tacoma, 4x4, 3.4L V6. Under the hood, the emissions sticker states ""Meets all Federal and California emissions standards...." And in a box it states "OBD II Compliant". Now I know that all newer vehicles are OBD II compliant. BUT i don't know if i need the CARB certification on my new converter (i don't live in CA). Most aftermarket catcon's are "49 state" legal, and OBDII compliant, but I believe that my truck was sold as a "50 state" legal truck (it was an option that came on the truck by default). If it helps, I need a "direct fit" not a "universal fit" as I still have the flanges, but cannot weld. So what do I need to buy, to make sure the O2 sensor, CEL, emissions, inspections, etc. don't come back to bite me??? |
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See my 10/29 post in the "Toyota Tacoma 2005+" forum. Above post shows why you need one of these units. Also, can be transferred from one car to another.
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Replying to: tacomaguy (Dec 02, 2008 6:46 pm) |
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