I have an 05 xterra, giving this a shot today!

I understand the spacer works, but the cat is polluting toxic gases everyday.

@@SparklingRufus ..the cat only needs to degrade from it's 100% new condition to a 95% good condition....to throw the code. It's not as bad as you make it seem.

Did you leave it on for emission test? I just installed spacers and code went away, but I have to test for emissions today? Please tell me the steps you took brother thank you

thank you for the useful tips 👍

I use the Copper grease- it grounds the sensors extremely well!!!

Was about to suggest the same with the last drill bit.Turn it over and drill it

yes. also i used a stepper bit which is much more efficient than multiple drill bits. great video and good suggestion turning the non-fouler over to protect the threads.

why dont u change the o2 sensor. buy a good one. dont get cheap ones. also those cars will need a new maf one day. you know when u get lots of smoke coming out the exhust.

Your Catalytic converter(s) are most likely clogged then. They usually won't start at all once they are completely clogged

Emissions BS makes me so angry as a mechanic. Like new diesels. We do $100ks a month at the dealer just in emissions equipment only. And the emissions equipment hurts the actual engine. Stupid government that's out of touch with reality.

Yeah now you can buy them without drilling

Hey where'd you find those? Having an issue currently

where u get it from , i need one soon

Where can you get the one piece ones?

@@Bradhelton938 spark plug anti fouler

no one wants to admit they did it. you can get major fine if the feds catch you.

Glad it worked out for you!

thank you for watching!

Is it in the sensors after the catalyst or after?

@@FENIX-re9tx you install the spacer on the sensor after the catalytic converter.

Hey brother how did you go about it, did you remove the spacer before your test? My check engine light just turned off and I have spacers installed for about 3 days now. I need emissions today I need to take the retest I failed the first time!

That's awesome to hear. I'm going to try similar in Illinois

@@dete503 nice! Did you pass??

Do they not care about these things attached to your o2 sensors?

@@jeffreya8329 no they don’t know that there attached, all they care about is your computer system are all in the “ready mode”

Im about to do it for the same vehicle

im glad it helped you out! thank you for watching!

@Matthew Rider honestly the only way you will know is if you try it. the smog might be difficult to pass with a bad catalytic converter

what about the fuel consumption?

@@ArunaWeerasingheblacklistlk mpg doesn't change much or at all. I've had a bad cat for a while gas mileage was the same

@@ArunaWeerasingheblacklistlk The upstream sensor is the "air/fuel" sensor that controls that. The downstream one is just for emissions. The computer compares the upstream reading vs the downstream to make sure the cat is doing it's job. That's why this mod always goes on the downstream sensor.

What state do you live in ?

What state do you live in?

You might’ve passed emissions but guess what that lights going to come back on guaranteed I know because I’ve done the same thing it got me through emissions but the light will come back the PO 430 PO 420 is still there you’re gonna have to fix the problem. Sorry to tell you this.

I was in New Jersey but now I moved to TN.... Thank you but that car is long gone and gotten a newer one but that light stayed off for about a year before selling it

yes, I realize this at 6:52 and I disconnected the harness but it was not shown to make the video shorter.

Best to change your O2 sensors when adding a spacer. You’re down there already so why not.

I don't change parts just because.

Did it pass?

@@cezarcamberos6586 It passed with no problems.

I have a Lexus is250 2008. With the exact same codes as yours, same lights and everything. What EXACTLY did you purchase to fix this ?

Hey brother so how did you pass test, did you take the spacers off before you tested? My CEL just turned off after having spacers on for about 80 miles. I need to pass my emissions test today! Thanks brother

Hey brother so how did you pass test, did you take the spacers off before you tested? My CEL just turned off after having spacers on for about 80 miles. I need to pass my emissions test today! Thanks brother

It's a application called torque pro you need a Bluetooth obd scanner

Did they ever come back?

@@leslielucci3182 not yet!

@@leslielucci3182 no, not as of yet.

Just after the cat

Yes it would but diesels do not have to pass emissions testing in most states

place it in the one after the cats you should have two before and 1 after both cats

Thanks for reply 👍

no, just the one that Is throwing a code.

I didn't add anything

yes they are

Same principle assuming you have space

If the O2 sensor is before the catalytic converter it's probably not the same code that I have so you might not be able to get rid of the check engine light doing this mod you might have to just replace the O2 sensor

Possibly someone else's hands...? I would imagine

He got his nails 💅 did for this video 📹 on fleeeeeek👀😂

If they didn't change them out for oem cats you can still get the code because aftermarket cats are trash. Usually takes about 60 miles of driving

If you didn't erase the code,, then you need to do that. Then drive for at at least 60miles.

Inline 4, thanks for pointing it out

if you do this upsteam, your car will run VERY badly and may even have damaging knock/preignition running too lean or foul up the plugs running too rich. Downstream only... the 2nd on each bank pretty much exists only to test catalyst efficiency.

what code do you have

you can do it with aftermarket as well

Update: drove my car for 100 miles after disconnecting the battery and replacing the o2 sensor and my car passed smog! Hopefully the CEL doesn’t come back on

So did you try the non fouler or just replaced downstream O2 sensor? I have the same code on my Toyota.

Sometimes p0420 are intermittent replacing the o2 sensor and passing smog was likely a Is coincidence and the p0420 will likely come back randomly. P0420 means the catalytic converter is working below its Threshold so replacing the o2 sensor won't fix the bad catalytic converter

@@robertdegraw3551 Both, changed the o2 sensor and installed the non fouler just in case

By looking at the thread and length of your o2 sensor and matching them to the non fouler

no this is not a code for the o2 sensor, it's a code for your catalytic converter not working as they should you can install a o2 sensor spacer and sometimes they will fix the engine code

No

@@ERICSDIYGARAGE Damn. I didn't read this until I was already finished redoing it. I use the fresh crush washer on the first nonfowler though. And I placed the used crush washer in between the two nonfowlers if that makes sense. I have not driven the car very far yet. I am not resetting the CEL and waiting to see if it will disappear all on its own. Thanks 👍🏽🙏🏽

Doesn't matter. You're just going progressively bigger.

You would have to do this to get it to clear the code and have all the readiness monitors in the green. Then you would need to remove the anti fouler and put the 02 sensor back in. After all that take it directly in for inspection as the code normally won't trigger right away it will take several drive cycles for the car to re trigger the code again.

If you have not tampered with the exhaust system ...I suggest clearing all codes and monitors and then run your car with the Non Fouler until the Cat Monitor completes [all systems]. Once it completes take off the Non fouler and keep checking with an OBD2 scanner that codes or monitors don't change...if they don't after driving it for 30 miles take it to get smoged or take off the Non Fouler before you take it in the shop. I should've done a video on mine.I just passed after years paying extra to make it pass, some shops were charging me 300 min 500$ max to make it pass under the table

Yes

Lmao California emissions testing is a joke

@@JO3haNsum u coulda just replace the o2 sensor....... i ran my car for years and it use more fuel. and i just reset the computer and drive it just enough to get it to pass. until it dont work anymore. then i change the sensor. realised i should have just freaking change it or use this.......

It was a cheap one made to drill through metal

Carbide

HSS

HSS is all u need use cutting fluid or oil if you like. Push hard low rpm keep the bit cool. If the bit smokes and turns blue youve lost its temper and it wont drill cuz its now softer than your work. Kept cool drill bits last virtually forever.

Your problem is that you own a GM product

Downstream

Thank you!

Didn't work on my 02 ranger..

it might take a while to drill through just keep at it make sure its a metal drill bit or something to cut through metal

Go in steps. Find a bit that barely passes through and lack of a better word message in circles then go up next diameter.

After

The other two bits are just for the pilot hole cuz 1/2 inch is pretty big hole