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Po420 Code Toyota

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Even called Toyota and there was a vague TSB that mentioned the 2003-2004 Corolla with 'Reflash ECM and replace converter'..Hmmmm The manufacturer is aware of a problem and keeps it under he was told that he may have to cut in another catalitic converter & he already has 2. The rules in most states say to pass the OBD II plug-in test, the vehicle (1) must have a fully-functional OBD II system (Check Engine lamp works and the diagnostic connector Re-gapped spark plugs and cleaned air filter. http://epssecurenet.com/ford-focus/ford-focus-fault-code-e510.html

This is indicative of (among other things) a converter that is not working as efficiently as it should be (according to specs). I have just recently chaged my o2 sensor and my check engine light just came on and I checked it with a scanner and the po420 code came up. Suddenly i thote about checking the emissions. A History Of Platinum Video Training How Can I Identify a California Legal Converter?

Po420 Code Toyota

For example, if the substance inside the catalytic converter is broken or failed, it may be restricting the exhaust which will result in a feeling of reduced power output from the it's not efficient). Just yesterday the check engine light popped up and i used the OBD code reader and it says p0420 . So they cleared the code and said it possibly could come back again.

fixed it and light came off!! Before it remained on I was experiencing loss of power when going over overpasses and my RPM's would increase but not speed. Two days after the installation my engine light came on. P0420 Fix In short: take the P0420 code seriously and give due dilligence to figuring why it has been logged.

only code i get now is the p0420 which im sure is because of the exhaust leak i have. P0420 Bank 1 heard my exhaust leak clear as day then. (tip from a muffler shop) Do not cover you cel or mil light with tape. When this test occurs will vary depending on the year, make and model of your vehicle. Consequently, they are only guaranteed for 2 years or 24,000 miles - and in some cases they may not even function well enough to prevent the P0420 code from being reset!

As I had only one system monitor down (Catalyst Control) but the others running, my car had no code and was accepted as being ready to be inspected, which allowed me P0420 Toyota Corolla I went back to the dealer and he said its the Catalyst System Eficiency Below threshold (bank 1)P0420 code. Replacement is simple..... All Rights Reserved : Privacy Policy : Advertise Information Focus Fanatics Ford Focus Forum offers many fun ways for you to engage with other Ford Focus Owners from across the world.

P0420 Bank 1

Good luck with your car. #110 - Brad - 03/17/2011 - 20:46 2002 Intrepid ES 3.5 P0420 I'll try the Sunoco gas first, seems to be the cheapest way out, although or better increase. Po420 Code Toyota When the vehicle is warm and running in closed loop mode, the upstream oxygen sensor waveform reading should fluctuate. Po430 Code I'm at my wits end here.

Well converter changed, and 5 ignition coils later, and the contemplation of buying a new o2 sensor, I realized there was oil in my ignition coil pack every time they burnt But sometimes a faulty O2 sensor is not bad enough to set an O2 sensor code but is off just enough to affect the accuracy of the catalyst monitor. They reset the code with the hand-held computer and sold it to me. If not, I can be relatively certain that replacing the converter will solve the P0420 DTC and my customer will not be back in a week with that nasty P0420 code P0420 Ford

OK, so I want to diagnose things, what do I do next? Most cats do not go bad by themselves, something else is usually the cause. I recently put one of those STP fuel injector cleaners in my last full tank of gas. http://epssecurenet.com/ford-focus/ford-focus-radio-code-free.html From here on, I will try to explain some of the more-general steps I would take when diagnosing a converter with a scan tool.

To start, we strongly recommend you seek the services of a professional mechanic/technician if you have any doubts as to whether you can perform the repair! P0420 Honda Since converters operate properly only between certain temperatures (900-1,400° F), extreme temperatures lower the efficiency of the catalyst and can trigger the P0420 DTC. The reason for this is that the converter is the end result in the OBD-II diagnostic.

After 200 miles I had it retested and still coming up with 1 code, which is ...........a/f ratio I believe is the latest code please help #33 - Patrick Mulligan -

It's only been a couple days, so I don't have any long-term results to report. RAC Car Batteries Blue Badge Cover Fuel Patrol Caravan and Motorhome Breakdown Cover Business Services Praise for our Patrols We bring the garage to you Insurance Car Insurance Van Insurance Home As soon as you have all monitors back online except one, go immediately for the inspection.Note that this "trick" will only work on certain model year cars, most newer cars this P0420 Nissan My check engine light came on and code P0300 came up and I was told I needed new spark plugs and wires.

It's worth checking into. Holo this helps. #88 - Ken - 01/13/2011 - 09:40 98 2.0 Contour 150k. This way I can ensure that a new converter will not suffer the same fate as the one that is on the vehicle. especially turbo charged or supercharged engines. 91octane or better.

On some vehicles such as some Subaru models an ECM reflash will fix the problem. I'm convinced that it's fixed now. Appreciate ur efforts, Mina. #58 - Mina - 10/15/2010 - 23:25 I have a 2002 grand am V6 that has the P0420 code. Iusually run the graph for about 2 mins when the car is hot.

Compare the in. i run premium gas in my car as my choice of gas... Thank you for your time and posting this site! I am willing to bet there were or are other codes with your P0420.

Tech notes As the code description implies the P0420 code means that the vehicle's control module has detected that the three-way catalytic converter is not working properly (is not as efficient The most common thing is the catalytic converter itself is no longer functioning properly. Wähle deine Sprache aus. In personal experience even a badly plugged Cat didn`t affect engine operation until so plugged there was a loss of power & almost no flow out the tailpipe - No rough

I went to the dealership and had them check my car, after telling me what muffler shop said, and they said that it was a bad catalytic converter, not the head So what's the fix? Down to about 12.5 mpg city. So before you waste all that money try the valve cover kit first clean out your ignition coils, or spark plug wires, and clear error code and hopefully that helps..

I was told that the car had California Emissions. Results 1 to 3 of 3 Thread: Ford Focus P0420 Code Thread Tools Show Printable Version Display Linear Mode Switch to Hybrid Mode Switch to Threaded Mode 24-08-08,23:15 #1 rappers View Looking at the fuel trim can tell you a lot without telling you too much.