![]() It’s impossible to give an accurate estimate without properly diagnosing the issue first. P0420 can be caused by anything from a bad sensor to a failed catalytic converter. How Much Does It Cost to Fix Honda Code P0420? Click here to get your FIXD Sensor today for just $19.99! Your FIXD Sensor comes with a free 14-day trial of Premium. You can call FIXD mechanics for free when you’re a member of FIXD Premium. If you need advice or help, a FIXD Mechanic can work with you to place a new catalytic converter. Watch the video below to learn how to replace your catalytic converter. If your goal is to save money and you aren’t afraid to work on your car, you should consider a universal fit catalytic converter. You will have to custom fit a universal catalytic converter into your car. Universal fit catalytic converters are cheaper and are designed to fit a wide range of cars. Direct fit catalytic converters can be expensive because they are made to fit one model. ![]() Direct fit catalytic converters are designed specifically for your car and will bolt right into your exhaust system. Tools Needed: New Catalytic Converter, Socket Wrench, Penetrating OilĬatalytic converters can be relatively easy to replace depending on what type they are. Click here to get FIXD for just $19.99 (normally $59).ĭifficulty Level: Intermediate (with direct fit catalytic converter) – Advanced (with universal fit catalytic converter If your O2 sensor 2 reading is fluctuating like O2 sensor 1 it means your catalytic converter is bad and needs to be replaced. If you can’t get a reading from your sensors it means your sensors may be damaged. Simply go to the “Live Data” tool in the FIXD app and pull up your O2 sensors. The FIXD Sensor plugs into your OBD2 port (usually under your steering wheel) and reads live data from your car’s sensors (see image below for example of O2 sensor 2 reading from FIXD app). The easiest way to read your O2 sensors is by using FIXD. There are two ways to check your O2 sensors. If the sensors are functioning and displaying unexpected readings, the catalytic converter might be worn. If you can’t get a reading from your O2 sensors it means you need to replace the sensors. Checking your O2 sensors will tell you if you need new O2 sensors or a new catalytic converter. ![]() If they are working properly O2 sensor 1 should constantly fluctuate between 0.1V – 0.9V and O2 sensor 2 should be steady. Your exhaust system has two O2 sensors (oxygen sensors), one before the catalytic converter (O2 Sensor 1) and one after the catalytic converter (O2 Sensor 2). Tools Needed: FIXD Sensor Or Multimeter/Butane Torch Click here to get FIXD for just $19.99 for a limited time!ĭifficulty Level: Beginner (With FIXD) – Advanced (With Multimeter) With FIXD Premium, you can even call the FIXD Mechanic Hotline to get specific answers for your car’s problems. You’ll also be able to read live data from your car’s sensors to diagnose your problems. It tells you what it means, how serious it is, and potential fixes with diagnostic steps. With the pocket-sized FIXD Sensor and app, you’ll be able to instantly translate your check engine light into simple terms on your phone. If you need any help or expert advice you can call the FIXD Mechanic Hotline for free to get specific answers for your car’s problems.Ĭons: FIXD isn’t free, but it’s only $19.99 for the Sensor. Pros: With FIXD you’ll be able to scan your codes yourself. Not only will you pay for the parts, but you’ll have to pay for labor. Mechanics usually charge about $100 for a diagnosis, but they typically deduct this cost from your bill if you get them to fix the problem too.Ĭons: This is probably the most expensive option. Pros: A mechanic will be able to scan your car and will be able to figure out what is the root cause of your problems and fix it. If you want them to clear your check engine light, they might not be willing to do that for liability reasons. You’ll still have to go to a mechanic or figure that out for yourself. They will scan your car and let you know all of the codes on your car.Ĭons: The downside is they won’t tell you what is causing your error codes. Pros: The main benefit of this is that you get your answer for free. There are a few options for this: Get a scan at AutoZone The only way to know if you have other codes is to use an OBD2 scanner. If you replace your catalytic converter without fixing the root cause, your new catalytic converter will fail too. For instance, if a P0300 (cylinder misfire) or P0172 (too much fuel in air/fuel mixture) can cause a catalytic converter to fail. Before you fix anything related to P0420 make sure you don’t have any other error codes because they could be the cause of your P0420.
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