Honda Accord got code P0420 catalytic coverter below Threshold QUICK cheap FIX 2013 to 2021
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- čas přidán 28. 07. 2023
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#p0420 #accord #bank1 #oxygensensor #downstreamoxygensensor #accordp0420 #2013accordp0420 #2014accordp0420 #2015accordp0420 #2016accordp0420 #2017accordp0420 #2018accordp0420 #2019accordp0420 #2020accordp0420 #2021accordp0420 #2022accordp0420 - Auta a dopravní prostředky
I have a P0420 on my 2015 CRV,I should replace a downstream oxygen sensor too , without needing to diagnose anything ? But on the other hand, O2s11 voltage shows,from 0 to 254 mili amps, why does it jump so high ? Thanks
I would replace it asking why would lead to lot of cans of worm
2016 Accord, 72k miles, first time check engine light on, P0420. I simply deleted this code by the scan tool one week ago, and have not seen it back after 500 miles.
Update: The code was on (100-150 miles) and off (300-500 miles), for 2-3 months. I pulled the sensor out and cleaned it, but CEL was on again after 600 miles. Replaced the sensor (Denso) and it works so far about 2k miles.
Nice job!! Keep ur fingers crossed
Just deleted my code today
I need to replace minds ASAP. Great work. 🥰
You can do it!
@@RBTheMechanic 🥰❤️
I have the same code. Will replace the o2 sensor soon. Thank u for the video
No problem 👍
Any updates ?
@@saiyan3676 ok? I get lotta messages so I forget
Any updates after replacing ?
@@Fvcyoupayme it had been good every since
Hello, I replaced the downstream sensor, but the check engine light came back on 3 weeks later. I scanned it again and the same code was displayed. However, it says bank 1. Does this mean it's the upstream O2 sensor? I have a 2015 Honda Accord Spot. Your Thoughts? Thanks in advance.
Ok ur car 4 cylinder only has one bank so this is it how many miles ur car has? Might be time to replace that catalytic and also the upstream sensor with it
Hey good vid bro! I have a po420 on my 2015 honda crv , I have a thermo gun and have checked inlet and outlet The front inlet weld ring reads 480 and the outlet reads 350 Should I still just try and change rear sensor?
Try replacing down stream sensor first also do catalytic cleaner
@@RBTheMechanic Good, And Affordable idea!!
Does this also work for the 3.5L V6 model? Am i replacing the downstream front or downstream rear or both of them?
Down stream v6 had bank 1 and bank 2
I have a 2019 Honda PIlot AWD throwing the P0420 error. I can start with the sensor. Car only has 90k miles on it and dealer said cats can go bad around 80-100k. Have you seen that very often?
Yes on these accord I have seen all of my customers get this issue but o my 2013 to 2017 so far. However I manage to do down stream sensor on some and they been good no check engine and passed inspection
Will this also cause the car to lack power and idle rough? I habe the p0420 code on a 2012 honda accord but its also idling rough
Yes
2013 honda accord V6..No check engine light or codes but rough to start .after 2 or 3 seconds idles fine and drives fine.. does it about once a day .scan tool does say O2 sensor not ready/ vehicle not yet completed test. .you think sensor are starting to go bad?
Did u do throttle service and fuel injection services or kept it up to date
Thank you brother
Welcome
I have the same code for a 2013 Honda accord exl. 160k miles. When I was driving the car, it felt really light while driving it. Didn’t stutter or anything. Can I still drive the car while waiting for the o2 sensors to come?
Yeah this cold wount stop from driving I would take care of it immediately and the shutter might be somthing else
But can I still drive the car while waiting for thr sensors to come in? The car runs lighter than usual, but I wasn’t sure if I can drive it for a few days with the check engine light on?
Update
Same thing 2013 accord lx 160k and I used cataclean and the light went out and passed inspection…do that first then the down stream if light stays on after a couple of days after adding the product cataclean…
i had the same code and replaced the sensor under the hood. still rough idle and jolting when i drive. If i dont have a lift for my car what does this repair typically cost?
Parts and labor $390
My 2016 honda has the same code and also the paper I received from autozone suggests replacing battery as I was receiving 12.4 V. Also sometimes my vechile doesn’t crank but it does after I loosen up the battery terminal and tighten them back. I have already replaced the battery but it happened again, do you see replacing downstream sensor will fix this issue for me?
Any suggestions will be highly appreciated.
Thanks!
According to don’t always run 14 v they do stand around battery voltage
@@RBTheMechanic do you think replacing downstream sensor will fix this?
I have 2017 honda accord exl model how much u charge need new catalytic converter
I did one few weeks back after marker was 1275 part and labor with gaskets
Hello
I changed o2 sensor but still I got the engine light after 2 days. Please suggest me what to do….
Then ur catalytic converter is bad
I have a Honda accord 2007 this code came on like 2 days ago should I try this first ? It has 121000 miles
Yes try this before going expencive
update?
Honda pilot the same code i need to change sensor ?
I would start with sensor
I changed sensor and it said I’m getting slow response maybe bad sensor ? Or cat
It might be bad sensor or wrong sensor
Update
I had the same code but no engine light on. It’s 2013 accord exl 182k miles. What should i do?
How did u not have check engine light on maybe the bulb is bad and replace the sensor
@@RBTheMechanic which sensor i should replace?
How much does labor like this cost? Im buying the parts but need a mechanic
Thank you
I charge $140
@@RBTheMechanic thats an amazing price lol
@@DaSesh yup
I charge $139
I charge $100.00
14’ accord had p0420. Cleaned old b2 sensor code came back after 50mi. Replaced it. Been 700mi no code. I scoped the cat and it look normal….
Ok cool
2007 matrix po420 bank 1 same thing??
Yeah best start with sensor
@RBTheMechanic is the bank 1 up by the engien? It's odd cause the light came on not long ago but no issues with it driving etc
Is that sensor bank 1 or bank 2?
This is 4 cylinder there’s only one bank. And yes this is bank 1 sensor 2
Hey bro. I’ve done both sensors and now it’s giving P0139 and P0420. Acceleration is kinda slower sometimes, no egg smell or smoke though. Car runs pretty much the same. Not sure where to go next. I feel like it’s a wiring issue for sensor 2 but I really have no idea. Any suggestions? I appreciate you bro.
I’ve replaced sensor 2 twice now. Just comes back on
What was the codes before. U might need to replace the catalytic
It was just the P0420
Now it’s both. P0139 and P0420
@@stevenkelli3377 did I get correct sensor
Did the car in the video have a Bank 1 issue or a Bank 2 issue?
Bank 1
@@RBTheMechanicmine says catalyst efficiency below threshold (Bank 1)
DTC severity 2of 3: Repair immediately if drivability issues
@@tayethompson6653 yes but if it’s 4 cylinders it’s only 1 bank
Mine says the same words but I saw bank 1 at the end of it. It's a 2013 Honda Accord exl
Is it 4 cyl
Where I can get Bank 1 cat for cheap?
Cheap?? I wouldn’t go for cheap look for walker brand
Yes sir some cats thousand buck i would try oxygen sensor first.
Yup
I've already replaced both sensors. But still getting the code. Help meee 😢
Then at this point I have bad catalytic converter how many miles dose ur car has?
@RBTheMechanic 246k kms. The mechanic i talked to said, that it's not common for hondas catalytic to go bad... idk spent so much already lmaooo... I'm considering to use the cataclean , is that advisable?
@@JohnO_28 it’s very common for it to go bad these don’t last more than 120k miles every single customer I had issues one very fire that was under 80k was good to do just the sensor
@@RBTheMechanic what do you reckon about the cataclean? Do they work?
@@RBTheMechanic could i still use the car? I don't feel any difference at all when im driving it long distance or on short distances. Like normal...
I just did my cat on my 2014 accord was 3 codes p0172 -p420 and after i did cat today now p2097
Reset the code if it comes back replace the sensor it could be wrong emission sensor
@@RBTheMechanic i did the sensor on the cat do i gotta replace the 2nd one also?
@@RBTheMechanic yeah im in california the cat oem
@@edough408 second one is more important it gives feed back for the health of catalytic if it give faulty siginal it will determin bad catalytic
so this is the downstream rear sensor
Yeah
I replaced sensor,spark plugs,did cataclean, and sprayed the cleaner down the catalic through the upstream sensor hole and still the check engine light turned on I GUESS ITS ABOUT TIME TO DO THE LAST THING AND SPEND MONEY AND REPLACE THE CONVERTER
Yes if u tried ll then it’s time to replace it
When it throws that code, it's almost always is the oxygen sensor. It's pretty much never the catalytic converter.
Yeah worst case it’s the catalytic but don’t let that be ur first step
@@RBTheMechanic My 07 Honda accord had aftermarket Cat installed and now the OBD II sensor says my sensor “Bank 1” air/fuel ratio is what’s causing check engine light and nothing else was detected what so ever. Is it possible that all I need is a new sensor for bank 1 ? And does is it need to be OEM sensor ? I believe the OEM for my Honda accord is “Denso” and also does the sensor for “Bank 2” also have to be OEM denso brand ? They replaced the “Bank 2” sensor since they stole my entire CAT and almost the entire exhaust system and I’m wondering if the bank 2 sensor is aftermarket and somehow confusing the car and causing the Bank 1 sensor to mess up. I really need help bad with this because I can’t find any used cars at all what so ever In the $8,000 price range that have less than 120,000 miles with good gas mileage and all I can find all over Northern California is the stupid ass “09’ Toyota Yaris” in my price range that’s decent on gas and I do not like anything about that car so I really need help whoever reads this message and what I should do ? Will the aftermarket CAT pass smog if I have OEM sensors in bank 1&2 ? Or is it possible the CAT itself even with brand new OEM sensors still fail smog if I replace the sensors with Denso brand OEM ? Please help haha 😂 I have 178K miles on my Honda and it runs amazing even with the issue I have rn… not a single issue besides this problem. What should I do y’all ? Thank you
@@RBTheMechanicI have this same code P0420 and it happened a week after my insurance covered the 1000$ deduction for a big car shop to replace my CAT. I know for a fact they put a new sensor in “Bank 2” that’s directly on the CAT and not sure if they put OEM or an aftermarket sensor for bank 2. As far as Bank 1 sensor, I have no idea if they changed it and I’m 99% sure it’s oem
@@vulkandeathgrip5568same boat on my 2000 Honda Accord just replace my cat and sensor directly on the cat now the code back with in just a few miles up the highway and back . Next step I guess is the o2 sensor And see what happens
@@BM-qg7qo I was told the cat has to be OEM and sensors have to be OEM as well cuz Honda motors are sensitive with air fuel ratio and all that shit unfortunately