Dtc p0420 toyota

Discussion in ' 1st Gen Tundras ' started by danmurphymnOct 25,

Log in. Sign up. JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding. This code has been on for months. Tried lacquer thinner, Cataclean, Lucas, etc - sometimes the light goes out for a day, but inevitably comes right back on. Do you think I should try changing the oxygen sensors first?

Dtc p0420 toyota

Drives: Yaris XP9 1. So, Since a while we are seeing the check engine light pop up sometimes on our Yaris 1. I saw this for the first time about three months ago. Had some issues with the rear muffler, but that one was replaced for a original one by the dealer. New muffler sits under the car for about a month now, but i saw the P again last week. However, what is the cause of this and how can i solve it more permanently? Is there someone who has dealt with this error before? Car runs fine otherwise, no issues. Mileage see signature icon is also fine. View User's Garage. Originally Posted by ThinkPad. Drives: yaris 3 door hatch Join Date: Jun The senior tech at work said he never got rid of the code P on any car by replacing the o2 sensors. How many miles are on the car? Cheap fix is using an O2 defouler in the O2 bung.

This car barely slows down a hill.

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The P Toyota code is a common diagnostic trouble code DTC that indicates a problem with the catalytic converter in a Toyota vehicle. This code specifically refers to Bank 1, which is the side of the engine where cylinder 1 is located. When this code is triggered, it means that the catalytic converter is not performing its job effectively, resulting in higher emissions. Dive into the depths of the P code, and you might find it shares a common language with Toyota. Speak the language of diagnostics. It is typically triggered when the oxygen sensor downstream of the catalytic converter detects a reduction in its ability to convert harmful gases into less harmful substances.

Dtc p0420 toyota

This page is meant to help you troubleshoot the Toyota Camry P trouble code. A failing oxygen sensor or bad catalytic converter are the most common causes of P Catalyst system efficiency is the percentage of these chemicals removed from the exhaust system. Oxygen sensors measure these pollutants.

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I definitely did with my cat. Do you have a multimeter or can borrow one? You are currently viewing as a guest! If it's clean, then yeah, it's probably dead. I that the laser thermometer you have the one from the link. This car barely slows down a hill. You should be able to view into the exhaust right before the cat and see if the "honeycomb mesh" substrate is plugged up. Have you ever changed your coils? It shows " currently in stock ". Find More Posts by ThinkPad. Show Ignored Content. You put the sticker on the car somewhere underside of hood or perhaps in the door jamb. Kinda close to 2.

The P trouble code is a common issue Toyota owners face and can cause frustration and confusion. This code indicates a problem with the catalytic converter system, an essential component of your vehicle's exhaust system. This guide will explain the meaning of the P code and its causes.

Any feedback based on experience would be greatly appreciated. He used Toyota parts on everything so I'm betting he didn't cheap out on the plugs. Log in or Sign up. You are currently viewing as a guest! Insert Quotes Quotes Post Reply. I think I'd go for a Canadian sourced cat over unknown or Asian provenance. The bank is defined by the 1st cylinder number at the front of the block. Tried lacquer thinner, Cataclean, Lucas, etc - sometimes the light goes out for a day, but inevitably comes right back on. Schcoman likes this. Quote: Originally Posted by kiimboy I also have an obd2 scanner, how can I tell if the air fuel ratio is good? You put the sticker on the car somewhere underside of hood or perhaps in the door jamb. Originally Posted by kiimboy. Tundra2 , Oct 25,