p0420

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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...

Thread by: Michikazu, Jul 25, 2017, 12 replies, in forum: Gen 2 Prius Technical Discussion

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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...

Thread by: chaircatmeow, Feb 12, 2017, 6 replies, in forum: Gen 2 Prius Main Forum

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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...

Thread by: ALX, Nov 1, 2016, 15 replies, in forum: Gen 2 Prius Care, Maintenance and Troubleshooting

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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...

Thread by: GeoffMot, Mar 31, 2016, 10 replies, in forum: Gen 2 Prius Care, Maintenance and Troubleshooting

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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...

Thread by: Gabriel Teixeira, Feb 19, 2016, 15 replies, in forum: Gen 2 Prius Care, Maintenance and Troubleshooting

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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...

Thread by: kswahl1, Feb 18, 2016, 3 replies, in forum: Gen 3 Prius Care, Maintenance & Troubleshooting