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Hey gang! OK - I've been reading the related P0420 threads and they've been super helpful but I'm still a little unclear on exactly what my next...
all I just got this 420 code, even I don't smoke marijuana ). I understand that it's not super critical, so I can drive it, till I will need...
Good afternoon all, My 2013 Prius had it's engine light come on, with code P0420. Took it to a dealer to confirm. My question is - can anybody...
Hello, so I have a 2007 Prius with 146K on it and I started getting the P0420 code. I scanned it and it shows "Catalyst System Efficiency Bellow...
I just replaces Air/Fuel Sensor and O2 sensor + plugs and air filter. Still getting P0420. Whats next to check replace?
2006 Prius (gen 2) 201,000 Miles Serviced by Toyota, never missed an oil change Orange County, Ca Last night after leaving a friends, about 1 min...
My 06 Prius gave me check engine light. OBDII says it's P0420. catalytic converter below efficiency. My OBD show that: oxygen bank1 sensor 1...
2006 Prius 154000 miles California Car runs perfect, 50mpg average This is my last week to get the smog done and I can't solve this P0420 mystery...
Hey guys, Really like the forum, read a lot and this is my first thread. I bought a second hand 2005 prius (gen II) at 125k km. I am looking for...
My 282k miles 2006 Toyota Prius is throwing code P0420 and I want to check what could be the culprit. Indeed changing the catalytic converter...
I just typed out a long post then it got deleted when I tried to add a picture. Ugh! I dont have any performance issues the lack of...
