Check Engine Light Code P0420 on Your Car / Truck? Replace These Parts to Pass Emissions

[@1AAuto]

√ Watch the Video √ Buy The Part at 1A Auto 1aau.to/m/Visit-1AAuto √ Do it Yourself √ Save Money

[@JohnNorris411]

A weak spark or just slightly out of time spark from a bad plug or coil can trigger the P0420 and still have no misfires or other codes. Do not assume your P0420 means there is actually anything wrong with your cat.

[@yactabay]

New title for this video: If You get code P0420, go pay that arm & leg for a new catalytic converter. Only cheap way out is the O2 sensor spacer trick. Don’t ask. Look it up.

[@VictorMTaveras]

In my experience, it's never the gas cap lol

[@sugashack74]

First off if you live in New York or California you CANNOT buy a catalytic converter online. You will have to get someone out of your state to buy it for you and ship it to you privately. Second, the hack to the P0420 is to add a spacer to the O2 sensor. I put a new catalytic converter and O2 and still got the P0420. Funny thing is when I had a bank #2 lean it was because the flex pipe was leaking. I did not have a P0420. After the new parts the lean code went away and the 0420 appeared

[@george746]

Don't you need to apply some Anti seize to those O2 sensors?

[@michael184272]

Always very interesting and informative..thanks

[@hectorpenamedina4817]

Hello friend. Hector from Puerto Rico. Very good video and explanation. I have a question for you. I have a camry SE 2004 3.3 with 115,000 milles. Turn on the code P430. I made a complete tune up and buy a catalic cleaner. The temperure of catalic is 100 grade more before catalic and change inside with a camare and is clean inside in the upper side. It run perfect. The light turn off and three days later come on but the scaner said than was the bank 2 sensor 1. I buy a original one and change. Seven days later come on the code again (be off 10 data). Some technic said than is the catalic and other said is the computer. What is your opinion. Thanks a lote.

[@sandeepchowdary7810]

Hi i have a diesel car and it completed 8000 km It has one issue if i left my car for 3-4 days and started on 5th day an irregular loud noise is comming for 3-4 seconds and comming to normal sound after 4 seconds im not so confident on service center pls suggest me as per the your experience if u noticed above mentioned problem

[@mikeunterseher9427]

Looking for anything on chevy lumina

[@robertknaggs4871]

Thanks for the info

[@mystikalxs3996]

Great video. I enjoyed it. I have a question, what causes the dust to build up?

[@tt600pch]

420 code can be a bit deceptive. The 2001 Rav4 I had threw the 420 code. It would die on the road. I took it in to a shop and they told me to replace converter. I put in a new one and all sensors and it died on the road again. I took it back to the shop and left it for a week. They drove it a little and said it was okay. I told them "run parts with it or take it on the interstate" They called me back with a "hey it died on us too". As a last ditch effort hey pulled a used cam sensor off a junker and it ran another 6 months. It died on me and I put in another cam sensor and it was still running when I sold it.

[@pookiewood]

What about Toyota Corolla P2757? Why do I keep losing coils every few months?

[@sanjeetsinghk]

With how the old converter looked in this video example. Isn't it worthwhile to try cleaning it first. It was just a bit clogged, that would save a lot of money I assume.

[@eggbert191]

Can you recommend a scanner that isn't going to break the bank?

[@tyronewalker5764]

Got a P0420 on my 2K Dodge Dakota 4.7, but everything 2:29 is fine. O2 have been replaced.

[@Thomas-hu9fz]

Thanks a lot for this information.

[@johneastwood4852]

Gracias señor.

[@punditgi]

Love this channel! ❤🎉😊

[@bywayz]

Very good!

[@belladonna131]

MY CHECK ENGINE LIGHT CAME ON JUST BEFORE I NEEDED TO RENEW MY PLATES. IT IS THE ERG VALVE... AGAIN. 🙄. IT HAS A LIFETIME WARRANTY, HOWEVER MOVERS THREW AWAY MY PAPER WORK INVOICES FOR MY CAR REPAIRS. I'VE NOT FOUND IT. STRANGE THING IS, THE LIGHT WENT ON AND OFF DURING A WEEK SITTING OF MY CAR AND RIGHT TURNS. IT COULD BE AN OLD BATTERY NEEDED TO BE REPLACED? THE CAR STOPPED RUNNING AND I HAD A NEW BATTERY PUT IN IT. THE LIGHT CAME BACK ON AGAIN AND HASN'T GONE OFF SINCE. BATTERY WAS FIVE YEARS OLD, BUT I DON'T HAVE PAPER WORK TO FIND THE LAST TIME IT WAS REPLACED. MY MECHANIC SAID THE EGR WASN'T TOO MUCH OF A CONCERN, BUT KEEP SEARCHING FOR THE RECEIPT FROM SEVEN PLUS YEARS AGO AND WE'LL GO FROM THERE. DIDN'T NEED EGR TO PASS INSPECTION. THANK HEAVEN. ❤

[@sarkhanahmadov4907]

Azerbijan. Baku👍

[@orionmengistu452]

Thank u Bro

[@404notfound.....]

Great information, but that's not a "scan tool" It's a simple generic code reader.😌

[@LoveLifek9]

I ❤ MI

[@olhemi1]

😁☕👍 Great job

[@sunshine3914]

If it’s that easy, what have I been waiting on?

[@RC-mz2oe]

😮

[@Djevan41598]

I got a better idea when a check engine light comes on. I say remove the instrument cluster and remove the check engine light bulb. Problem solved.

[@kloston1]

Ha thats my same car and same problem