How to Fix P0420 Engine Code with Catalytic Converter Cleaner

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Engine Code P0420 Saving Repair Parts:

This video shows you How to Fix Engine Code P0420 in the easiest, quickest, and cheapest way. 1 of the most practical solutions to fix the P0420 error code. 1 simple DIY solution to repair P0420.

Engine Code 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 P0420.

Fix Engine Code P0420 Easy DIY Method | Catalytic Converter Cleaner
(1) Get a Catalytic Converter Cleaner
(2) Pour into the Gas Tank
(3) Run the Engine

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[nr]

I just had to do this today for my 2012 Chevy Equinox I really hope this works because I can't afford the alternative. Thanks for the video much appreciated.

[davidrosner]

I’m driving a 3.L Diesel in my X5. Threw the 240 Code again. Two weeks ago it went off and I cleared it. I was hoping that filling the DEF Tank and continue to use Power Service additive would correct the problem. Well it didn’t. I saw this video and was curious about the RPM’s needed to allow the cleaner to work effectively. At highway speeds I’m still under 2k-RPM. I’m hesitant of driving it around in a lower gear for 30 min &/or at least 150 miles to allow it to work.

[mohamedyassinsouilem]

Hello, I have 2 questions.
1. Do I need to use the whole bottle?
2. Do I need to drive 150 miles in one trip or in general?
Kind regards

[lilithleon]

I’m looking at a cataclean. But it’s recommended not to use with gasoline oil engine. And I can’t figure out if my Subaru Forester 2009 is one or not

[imsoooimpresssss]

owned a honda crv 2006 …is it 1 or 2 catalytic conveter? or just 1 catalytic conveter but has more than 1 parts? i just got it replaced in january and in march engine light on again and i have scanner it show code p0661 & p420 code and i got my oxygen sensor replaced too…any link or what does my catalytic conveter look like? ty all

[jocarrillo]

I just received my LiquiMoly catalytic system cleaner. Do I pour directly in my gas tank or some other way? Part#8931

[DARKKSHADOW]

Will this work for my Nissan Altima 2007? This code popped up and said the exact same thing.

[Dami]

Hi i recently just got the exact same code the way u described it the code popped up on my 2005 scion tc and I noticed this bad smell coming out from my exhaust…Would this work??

[goodlife]

I have a 2009 Buick enclave I had the cat converter replace and the sensors and the code is still there should I do this process

[SODAMONEYSUNDAYS]

2011 Nissan frontier same code should I try this ?

[XxbeatsxX]

P0420 code, I changed new catalytic converter and new upstream and downstream sensor, the fix clear the code, but few months later, the code came back up, I wonder why

[claudettejones]

i used cleaner from auto zone on my 2017 dodge journey and the light went off but came back on the next week so i tried it again and it stayed off liner but still came back on what should i do

[mombrown]

2011 honda accord which one can I use?

[blessed]

Hoping helps. Just got this video on my car today. I don't drive 150 miles, so can I just add then sit for 39 minutes and rev engine? Tganjs

[nekaerra]

Would this work for a 2007 Honda Accord

[imsoooimpresssss]

i was going to try the cataclean again it help my gas mileage last time

[carltubice]

Hi! Is this the liqui molly 7110 catalytic cleaner? I am looking for one and there’s another liqui molly cleaner that you can’t put in the gas tank.

[theartofmotivations]

Can you use on a 2012 Hyundai accent hatch back

[losbananoss]

this can clean little bit, but the code p0420 never gone. must change the cat and the sensors and the spark plugs, the collies.

[nallelimoreno]

Can I do this on my Toyota Camry 2002?