Toyota po420

By Hshshumen, December 7, in Auris Club, toyota po420. I just bought Toyota Auris 1,3 Petrol for my wife, but it turns out that the car has some problems. My mechanic said it should be one of the O2 sensors and most probably the one after toyota po420 Catalyc Converter.

Discussion in ' 1st Gen Tundras ' started by danmurphymn , Oct 25, Log in or Sign up. Toyota Tundra Forum. Welcome to Tundras. You are currently viewing as a guest! To get full-access, you need to register for a FREE account.

Toyota po420

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? Any feedback based on experience would be greatly appreciated. Sort by Oldest first Oldest first Newest first Most reactions. Not sure about the intake manifold gasket because I just got the car 6 mos ago. Are you saying I may need to change it? If it's not , it hasn't been changed and you should change it. It causes a few trouble codes from vacuum leaks The job of the oxygen sensor after the cat converter is to let you know if the cat is working or not. What happens is you have pollutants going into your cat converter.

Installer just used sleeve and mild steel clamps. I also have some warranty which I might toyota po420 to try and repair the engine. Hope this helps.

Hi all, previous owner had a decat pipe on my corolla tsport which I've just replaced because I didn't want the hassle of emissions failure come MOT time. I replaced with a whole new Klarius mid section, which includes the catalytic converter and center silencer. I also replaced both o2 sensors with Denso items. My code reader shows P again. I work for a fire and rescue authority and we have a workshop with emissions tester so just yesterday I asked if they could test it for me to make sure it was all working as it should.

Are you getting the dreaded P error code from your Toyota Corolla? This post discusses the reasons for the code, and the easiest way to fix this common problem. When you buy through links on our site, we may earn an affiliate commission — at no cost to you. Use an ODB2 check engine light reader to read the error codes that are causing your check engine light CEL to illuminate. Error codes that start with P, refer to a problem with the catalytic converter cat. The way the vehicle determines that the catalytic converter is working okay is by measuring the oxygen content of the exhaust both upstream and downstream of the catalytic converter. If the cat is working, the 2 readings should be different. If the cat is not working and not doing anything to the exhaust, then the 2 sensors will read the same thing — indicating a problem. One thing to note: if the P error code shows up in addition to any other error codes, diagnose those errors first.

Toyota po420

This page is meant to help you troubleshoot the Toyota 4Runner 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. When the readings from the upstream and downstream oxygen sensors show similar readings not enough pollutants expelled from the exhaust , your vehicle will throw the service engine soon light P This can happen for three reasons:. You can ignore this section if your 4Runner has an inline engine or if the exhaust manifolds merge into one pipe before the catalytic converter. Typically, the first cylinder is closer to the front of the engine. The bank 2 version of this code is P

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Bank 1 downstream only had 1 of the 2 nuts holding it on. Log in. Link to comment Share on other sites More sharing options Discussion in ' 1st Gen Tundras ' started by danmurphymn , Oct 25, Oil consumption is high for sure and most likely has caused a clogged catalytic converter. The P code is just "catalyist system efficiency below threshold bank 1 ". I've just plucked this below link off the internet as an illustration. Gerg Posted July 2, So I'm thinking to try the ideas that TonyHSD gave me and try those additives and if they don't work as well I will change the engine and hopefully that will be the end of the story. Schcoman likes this. They look the same to me, one has a longer pigtail. Depending which service was done Intermediate, Full, Essential Care, etc , the air and cabin filters may not have been included as part of the service. Be firm and polite with them , tell them that you know your rights, you like the car and spend a lot of money on it, but the car was not fit fir purpose at the time of sale. The thing that most makes me angry is that I thought that Toyota is one of the most reliable make for cars, but may be I'm just unlucky.

This page is meant to help you troubleshoot the Toyota Tacoma P trouble code. A failing oxygen sensor or bad catalytic converter are the most common causes of P

If your cat is good no pollutants will come out of cat and when sensor is graphed you will see a flat line. Hshshumen Posted December 7, I've searched but not found a specific thread for this. It will never work either unless we have much older Toyota. Thanks for advice. This code has been on for months. Gerg Posted July 2, Otherwise, we will waste too much money on garbage aftermarket metal pipes. The first O2 sensor is used to adjust fuel mixtures, the second is used to test for catalyst function by looking for a phase-shift in the oscillating mixture adjustment, that the car is endlessly performing after warm-up. Do you notice that the truck is a little bit louder, especially around the driver's floorboard? So I'm thinking to try the ideas that TonyHSD gave me and try those additives and if they don't work as well I will change the engine and hopefully that will be the end of the story. P code after replacing cat and sensors. Insurance Support. They even failed my perfect Auris with a pending code no check engine lights.