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Hi folks, hoping to get some insight on the following issue w/ my Gen 2 / 2007 base: While driving up a steep hill for about a quarter mile, the...
Vehicle History Starting from the beginning, I bought this Prius at ~125 miles with a p0420 code. A new Hybrid battery was installed just before...
Hello all. This is my first post. I searched the forum to look for similar symptoms, but couldn't find any. Because the CEL/P0420 only comes on...
Hey! Anybody know the part number for the o2 sensor (bank 1) that generates the p0420 error code? I have the dreaded light on the dash, using...
Hello all, I have an 08 with 276k miles. I've been driving with P0420 coming on and off for about 9 months now. Very tight budget and have been...
Currently on the side of the road. Had a history with a P0420 code for horror efficiency on catalyst. Noticed that my perch flow monitors were...
Hey! I have a AP200 and got a P0420 code, I am going to try two tricks one after the other to try to fix it: 1 - clean the cat via "Liqui Moly...
Hey guys! Just got my Autel obd2 scanner, ran the diagnostics and this is what I got : [ATTACH] [ATTACH] [ATTACH] [ATTACH] [ATTACH] I could...
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....
