Toyota po420

By Hshshumen, December 7, in Auris Club. I just bought Toyota Auris 1,3 Petrol for my toyota po420, 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 the Catalyc Converter, toyota po420.

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. Quick Links: Subwoofer in an Access Cab

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.

The warranty is irrelevant. Ask a question Answers will be sent directly to your email. An O2 sensor extender is cheap, and might get you around your problem, toyota po420.

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. They had to get the cat hot, but it went through and would've passed an MOT. Then I get this code again today and I'm now stumped.

P is a well-recognized error code within the automotive industry, notorious for its persistence. Luckily, this article is designed to guide you through understanding the implications of this error code, exploring its possible causes, and navigating potential fixes. Drawing on our experience, we acknowledge that resolving P can be challenging without appropriate knowledge. This complexity arises as the error can take a significant amount of time to reappear, even after parts replacement and code resetting. Throughout this blog post, we will address these issues and more, providing you with comprehensive insight into the P code.

Toyota po420

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.

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I also have some warranty which I might use to try and repair the engine. Go to topic listing. At least you bought your car from a dealer, so should have some comeback. Toyota GR Corolla Forum. Regards Hristo. Kinda hassle last time, but surprised at the price. Annoying Beeps - Help Please. Thanks for advice. Meaning cat is bad. The breather system can cause pressure build up, forcing oil into the combustion chamber via the valve guides.

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.

My mechanic said it should be one of the O2 sensors and most probably the one after the Catalyc Converter. I'm just a Toyota owner, with little practical experience of replacing cats and O2 sensors, so allow for that in what follows! Clear editor. You can post now and register later. Are you saying I may need to change it? Display as a link instead. During this time, it's up to the retailer to prove that the fault wasn't there when you bought it - it's not up to you to prove that it was. It's just an example. So your after cat oxygen sensor will tell you if cat is bad or not. Meaning cat is bad. We still have 2nd catalytic converter after the 2nd O2 sensor and just enough to pass any MOT. Reply to this topic Toyota Tundra Forum.