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- เผยแพร่เมื่อ 3 ก.ค. 2024
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==== How to Fix NISSAN P0420 ==
Engine Code NISSAN P0420 Saving Repair Parts:
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This video shows you How to Fix Engine Code NISSAN P0420 in the easiest, quickest, and cheapest way. 3 practical solutions to fix the NISSAN P0420 error code. 3 simple DIY solutions to repair NISSAN P0420.
Engine Code NISSAN P0420: Catalyst System Efficiency Below Threshold (Bank 1). It indicates that the Catalytic Converter is not functioning efficiently, so the vehicle is increasing the output of harmful pollutants. How to clean the Catalytic converter. Tips and tricks for cleaning a catalytic converter in your car and fixing code NISSAN P0420.
Fix Engine Code NISSAN P0420 Easy DIY Method A | Catalytic Converter Cleaner
(1) Get a Catalytic Converter Cleaner
(2) Pour into the Gas Tank
(3) Run the Engine
Fix Engine Code NISSAN P0420 Easy DIY Method B | Wash the Catalytic Converter
(1) Remove the Catalytic Converter
(2) Get a Bucket with Water & Detergent
(3) Soak the Converter for 10 Hours
Fix Engine Code NISSAN P0420 Easy DIY Method C | Modify the Oxygen Sensor
(1) Remove the Oxygen Sensor
(2) Prepare the Components
(3) Refit the Components
(4) Re-install the Oxygen Sensor
The components displayed in this video are generic components that may not apply to all Nissan vehicles. Vehicle manufacturers may use manufacturer-specific components that are different from the ones shown in this video.
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0:00 What is NISSAN P0420
0:43 Method A - Catalytic Converter Cleaner
1:05 Method B - Wash the Catalytic Converter
1:37 Modify the Oxygen Sensor
2:39 Claim a FREE Engine Code Eraser - ยานยนต์และพาหนะ
![How to Fix NISSAN P0430 Engine Code in 3 Minutes [3 DIY Methods / Only $4.97]](/img/n.gif)
these 3 tips...at least #1 & #3 make more sense than anything anyone else has told me.
Thanks! @sassylrhg
2007 Nissan Murano: replaced 6 plugs and the three ignition coils under the intake manifold. All was great. 350 miles later I threw a p0420. Turned out that the throttle body hoses after the MAF sensor and right on the throttle intake had pulled off. Mostly because the accordian hose is so old it is rigid. This brings air in after the MAF and screws up the air mix. Remounted that better (not that easy with old rubber). Code is gone, acceleration is back on point. Will update if codes come back. This was about a 10 minute fix that took about an hour due to the old hoses.
Was your Nissan having trouble accelerating past 2000rpm? Mine is having that issue with p0420 code
very nice thank you
We're glad to be of help. Stay safe always, Dobby!
I can't find the same bottle of catalytic converter cleaner for sale, is there a substitute?
My car has exactly the same problem, just P0420.
I replaced the catatlytic comverter and both 02 sensors it still sets the po420 code
Could be a misfire, due to spark plugs or a leak somewhere
If you get the p0420 code in bank one, that is the upstream oxygen sensor, I see in the video you hooked up a Fowler to the downstream oxygen sensor. So would I hook up the Fowler upstream or downstream to fix the p0420 bank 1 issue?
Depends if it’s bank 1 sensor 1 or 2.
Hello, Nonda.
I have a 2014 Infiniti Q50 which occasionally “misfires” while idling and sometimes while accelerating. I have the p0420 code and have tried using two bottles of cataclean and it’s still doing it. Replaced the spark plugs and still no changes.
Please help 🙏🏾
HI Jonathan, is there any other code that registers along with this code?
If you haven’t found the problem yet then try checking your spark plugs & replace your coils. That will most likely make your car misfire than a dirty catalytic converter
Did your suv jerks when you pressed gas?
If you have already done the spark plugs then you probably have a bad ignition coil. I had this issue on my Murano a few years ago, one of the cylinders was not firing
@kapjthedon5924 yeah he said he already did the spark plugs so I'd say ignition coil is bad
Is it the upstream or down stream o2 sensor?
Down
Thank you however my car was running I parked my car last night it won't start and p0420 code is what I got
Hi Irma, please provide us with your vehicle's year, make and model for us to address your concern accurately.
I have a 2002 Nissan Altima
@@nondainc thank you
Hi Irma, failed catalytic converter often triggers this code. However, it is better to check for other potential causes. Begin with verifying if there's any other code present along with P0420 by using the ZUS Smart Vehicle Health Monitor Mini. Check for leaks and check the voltage reading of the downstream O2 sensor.
If it won't start its either a dead battery or problem with ignition system