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My cat converter was stolen about 3 years ago and I had it replaced with after market kind. About a month ago the check engine light code came on...
While performing my recent inverter swap I went ahead and replaced my PCV valve (old one was still rattling, albeit a bit gunked up), cleaned my...
Hello, I’ve been lurking for over a year but am new to posting. I recently posted a diagnosis question and got some good feedback and figured I’d...
I was driving my 2008 prius yesterday and noticed the check engine light was on. I hooked up the OBD reader and got a code for P0420. Today I...
Hello everyone, I am writing this post to seek information from you about some issues I am facing. About 2.5 years ago, I bought a 2007 Prius...
Hi all, I’ve been troubleshooting (I mean, sitting on) a problem with my cat for awhile now. I’m running a ‘07 Prius with 300k miles on the...
I came across a post to solve the P0420 code using a spray can, and I would like to give that a try. However, the person who posted that article,...
I have a p0420 code have replaced both o2 sensors, mass airflow sensor, all 4 coils and plugs. Most were replaced before the code just in self...
I failed emissions in Illinois due to p0420 and p0137. I had my cat stolen about 2 years ago and replaced with an aftermarket. Steps taken so far:...
Hey y'all. P0420 on my 2007 Gen 2 found at emissions testing in Illinois. Aftermarket cat was installed after mine was stolen about 2 years ago....
Hello, My Toyota Prius 2008's Catalytic Converter was recently stolen for second time in the last couple of years. I have full coverage insurance...
P0172, P0300, p0301, p0302, p0304 P3191 and P3193 Hello. Multiple codes were pulled in June when I thought red triangle was the Hybrid Battery....
I've gleaned so much info from these forums over the years I've never had to make an account but here we go. Thanks everyone for your previous...
Yet another P0420 thread but bare with me. I read so many threads here about P0420 and other emission threads and very thankful for a wealth of...
For the first time my 2006 Prius with 177k miles failed an emissions test :(. P0420 and P0A93-346 were the culprits. Brought it to a mechanic who...
I recently bought an 06 prius with what i thought just needed a HV battery but turned out to need a battery and inverter but a few days later i...
Just bought an 07 Prius last week. Drove fine on the test drive and I got no engine codes when I did a full scan of the system with my BlueDriver...
Car's had P0420 for a while, and recently noticed P0446, and I'm wondering if it was there before and I may have missed it. Can an evap issue also...
2006 Prius with almost 250k miles. Minimal oil burning (anout one-half quart every 3000 miles). About 25k miles ago, my Gen2 started throwing...
I have a Red triangle and code P0810 and P0420. Before I get into this I want you to know that I have always done all the maintenance to this...
