I decided to search for a direct bolt-on replacement rather than cutting the old converter off and weld a new one in. So, I got a new catalytic converter installed thinking that was the problem, … Does this make sense? It could be another issue unrelated to the catalytic converter. I have this 2001 toyota camry with 2.2 le troubled code P0420.I installed 3 catalytic converters but P0420 will not disappear.All O2 sensors are new,new egr valve and new vacuum modulator.VSV valve is also new.Whats going on here,can somebody help,will appreciate. Can the catalytic converter deteriorate to the point to where it affects the running of the engine? For this reason, we highly recommend a diagnosis prior to performing any replacements. I have a 2007 Nissan Sentra has a code P0420. Since buying the car, I have had to spend about a thousand dollars on parts and many days of my own time replacing the … I am now getting a PO420 OMDII code which probably means my catalytic converter firewall side has gone bad. Even though you can still drive your vehicle around, it could pose a threat to other drivers on the road because of the weak acceleration and power coming from the engine. I have replaced the following: upstream & … 2002 xterra wouldn't pass smog. FIXD Marketing July 18, 2018. Olga Layto August 19, 2018. Catalytic Converter inefficiency (P0420 code) tried everything and STILL NOTHING!HELP. Now That You Have Some Background, Get to a Mechanic You must have the catalytic converter replaced if you want to restore the acceleration back to normal. LOOKING FOR A CHEAP CATALYTIC CONVERTER CLICK HERE If you have any questions concerning application or need technical advice concerning your vehicle please give us a call. What Does Code P0420 Mean? … Super Moderator. My smog guy read the code and it is p0420. Remember that there can be other causes of the P0420 trouble code like faulty O2 sensors or exhaust leaks and the problem may not be in your catalytic converter. Your Beetle has at least two oxygen sensors, one before and after the catalytic converter. P0420 applies to those models built up to around 2008. He didn't see anything. We just had to replace the engine. I have try re-programmed it before, but it did not work for my car, cause at that time I have about 140,000 miles on the car already. After that, P0421 is utilized by Mazda. When attach a trouble code reader and come up with a P0420, your first assumption may be that you need a new catalytic converter, simply because the words catalytic converter are mentioned in the code. Let’s discuss Catalytic Converter construction from a very simplistic point of view! GM … P0420 showed, so bought a new catalytic converter online and had it installed. Replacing the oxygen (O2) sensors may sometimes fix the code, but in most cases, the catalytic convert needs to be replaced to fix the problem. I have a 2014 Cruze Eco and the light started to go off around July 2018 (give or take a month, I didn't start taking notes until October). I was told that the aftermarket converters will not work as well as GM ones and will cause the engine light to come on again. cats look almost brand new. After the tests you may indeed discover that the catalytic converter is bad. This is what a P0420 means in simplified terms. I have a 2009 Chevy Traverse LT AWD. They said that it needs a new catalytic converter&EVAP Value. Also changed the front oxygen sensor, still no difference. Is this the case? I have replaced the catalytic converter twice and still have the same problem. Diagnose P0420 Catalytic Catalyst Code by Larry Carley copyright 2019 AA1Car.com. To no avail, after breaking the converter in and driving the car almost 100 miles, p0420 keeps coming up. They said they had reformulated the converter for my 2001 Subaru Forester and that should fix the problem. Your Camry has at least two oxygen sensors, one before and after the catalytic converter. 5 Posts . Reply . I just replaced the catalytic converter and exhaust manifold with new sensors on a 2009 Mini Cooper Base model automatic I am still getting P0420 what else can cause p0420 on a mini cooper other then catalytic converter and exhaust manifold? You can replace the aftermarket 3 times if need be,and still have $600 left in the wallet. It depends on what trouble code is tripping the check engine light. In April, we decided to try a new catalytic converter. Well 3 days later the sel light came on. The code technically stands for: Catalyst System Efficiency Below Threshold. When the readings from the upstream and downstream oxygen sensors show similar readings, the vehicle will throw the service engine soon light (P0420). P0420 code after new catalytic converter. Check Engine Light is on; Lack of power from the engine; Decreased fuel economy; Rotten egg or sulfur smell; Chrysler P0420 Causes . If they have failed, it is likely due to something else that caused it to fail. Discussion Starter • #1 • Oct 23, 2014. Hello! None of the states have data separated to show what the retest failure rate of the DTC P0420 is, but many state administrators state emphatically that the number one complaint of motorists references the P0420. Does that really mean your converter has reached the end of the road and needs to be replaced? SubaruOwner2 wrote:I called the manufacture of the catalytic converter I purchased (Eastern Catalytic) and they sent me a new converter. My van has 190,000 miles on it, and it runs rough sometimes when first started, but it usually smooths out later. Among the many jobs that oxygen sensors have is they have to measure the emissions levels coming in and out of the converter. Discount Converters LTD. 6823 Fulton St. Houston, Texas 77022 Toll Free USA 888-651-0770 Outside USA 713-722-9200 Fax: 713-691-2071. I've been doing a lot of basic tune up stuff, but I'm wondering if my catalytic converter may be the problem. Although newer cars produced in the last 10 years have had more efficient and better flowing catalytic converters then in the past, aftermarket catalytic converters can typically still outflow them. Jump to Latest Follow 1 - 20 of 23 Posts. Unfortunately, this means that you will have to consider replacing the catalytic converter. Thank you, The FIXD Team. By Gary Goms. For this reason, we recommend that these systems are thoroughly checked out before replacing the catalytic converter. I decided to look for a new catalytic converter. You should not wait to have your catalytic converter replaced. Please do not overlook other tests and possible errors that it could be! Reply . I just had it installed and will have to report back later if it resolved the problem. Replaced the O2 sensor and I haven’t seen the CEL since P0420 can mean the catalytic converter is bad, but often it’s not. P0420: Catalytic Converter System: Catalytic converter, wiring, HO2S 2: We recommend Torque Pro. High Flow Catalytic Converters and the P0420 engine code One of the more popular modifications that we sell and install here at DDMWorks is a high flow catalytic converter. I have a Buick LeSabre 2004 Custom, that was throwing a P0420 code, and stalling at red lights after the car was warmed up. We Know Cats! Your Check Engine light is on and you find a P0420 low catalyst efficiency code for your Catalytic Converter. Catalytic converters are not normally a "wear" type item, that is they are not designed to wear out and need replacement. 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 as the factory is expecting). So after performing all the diagnostics, analysis and repairs, the P0420 code still stores in the ECU. At the beginning of this year I purchased a lemon 2006 Outback Limited. If you also have any other code related to the ignition system, emissions system or fuel system then you should start diagnosing them first. I installed it my self and took it down to my smog guy. If you tried the Oxicat catalytic converter cleaner, but the problem still persists, there is not much more to do than removing the catalytic converter to inspect it and to make sure it looks okay. Hi Carlos, The catalytic converter is only one of the things that could be problematic in trouble code P0420. The light finally stayed on in December and at that time I had my mechanic do the 100,000 mile check. I have a 2006 T&C with 3.8L - Here is the history on this - I have been battling the P0420 code for a while - so I ended up replacing all the following within the last 6 months - only to have the P0420 code keep coming back. But first you have to understand how the air/fuel and emissions systems work. Code P0420 indicates that the catalytic converter is not functioning efficiently, therefore increasing the output of harmful pollutants by your Chrysler. I have a 2013 chevy cruze was running perfect then both catalytic converters was damaged and clogged.Gotten replaced,check engine light was off then came on a couple days later,took it to get scanned And was my catalytic converters? Catalytic Converter Tech Feature: Diagnosing P0420 or P0430 DTCs September 5, 2010 . 1; 2 ... (OEM DENSO BRAND NEW)-replaced catalytic converter with aftermarket "weld in" style (didnt work)-since aftermarket cat didnt work, i purchased a used exhaust manifold w/ 12k miles from a friend who switched to headers. Although modern OBD II technology has simplified catalytic converter diagnostics, it’s still important to understand the basics of catalytic converter operation when dealing with a P0420 or P0430 diagnostic trouble code (DTC). These are the common things; there are plenty of other, often obscure reasons why an O2 sensor codes might be set. Among the many jobs that oxygen sensors have is they have to measure the emissions levels coming in and out of the converter. This is a costly repair, but common with a p0420 code. They also paid for the return of the one that did not work. is there any way ot might be a sensor to disconnect,i already have car unplugged from battery Chrysler P0420 Symptoms. What else can I do? Bad Catalytic Converter. This generic powertrain/engine diagnostic trouble code typically applies to most manufacturers since 1996. Everything you need to know about Catalytic Converters. The PCM re-program just to let the O2 sensor read wider range, and if you still have bad Catalyst intake manifold Converter then you need to replace it. IMPORTANT: the diagnostic procedures listed below assumes you only have the data trouble code P0420 present. Do I need to reset the computer or what? #2 03-27-2013, 10:13 AM NissanTech. Car runs completely fine P0420 is a OBDII trouble code. The reason for this is so I could go back to the OEM converter assembly if the catalytic converter was not the real cause of P0420. P0420 is probably the most common code seen. Since I have looked for leaks and couldn't find any, I decided to just go for a new catalytic converter. Have your garage pull the code for you and see what it is. 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My self and took it down to my smog guy read the code technically new catalytic converter still have p0420...
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