Do Oxygen Sensor Extenders Really Work? (Andy’s Garage: Episode - 453)

[@I-sed-no]

This worked perfectly for my '03 camry 2.4L (barely fits, btw - very tight fit next to oil pan). 420 CEL never came back on and my cat is hollowed out completely. Glad I went this route.

[@AriHahn-i1g]

Where can I buy it?

[@PhillipsVision]

@@AriHahn-i1g online…Amazon,Walmart,eBay etc

[@glentreasure2466]

Well, I did all that wish me luck. I gotta go to Mission today. I had my engine light was on so long with the P0 or 20 code put new sensors and all and it just didn’t work so I watched her video hopefully today today we so hopefully I’m just like you in and out and that would be so awesome, I will let you know if I pass if you see what I put on here😎👍👍👍👍👍

[@youngbodicua2598]

Does anyone here care about being legal 😅 two words “Straight Pipe” 👏🏾👏🏾

[@barry9658]

It just sucks when it’s a Subaru cel on means cruise and traction control system off it sucks in the winter in the rust belt

[@sergiotall]

Thank you for taking me to school 👍

[@danielfiore8865]

If you're in CA... EVERY SMOG TECHNICIAN is on to this. Make sure you remove after the drive cycles complete BEFORE the test.

[@hyunwhyte1338]

Drive for awhile with it and then remove before test ?

[@danielfiore8865]

@@hyunwhyte1338yes... you need to remove before test. Idle in there.

[@hyunwhyte1338]

@@danielfiore8865so remove right before the drive over the smog spot is what you mean? Wouldn't the code just come back on?

[@danielfiore8865]

@@hyunwhyte1338 it comes back on at freeway speed...

[@danielfiore8865]

I would remove it down the block from the smog shop

[@iamredrunt172]

These work on early OBD2 systems. I can't remember what year, but the later systems where programmed to detect the operation of the downstream sensor,during warmup. Long story short. They work on early systems but ,not on the newer ones.

[@Mr.Thermistor7228]

It has always been detecting the effectiveness in all years. It didn't change

[@RATCHETMAN1001]

you are correct tested it several times they dont work.

[@carlenasp]

Awesome explaination and demo! Ty

[@Icubela]

Great video, Extenders is really a cool idea to get your emissions done ☑️ but it must be removed just right before the SMOG center . Don’t drive too much after the extenders removed because ECU will throw the error again !

[@oldschoolrican]

Will the extension also help with misfire & rough idle?

[@PhillipsVision]

@@oldschoolrican no, that may require spark plugs and/or wires, ignition coil packs to be replaced. You need to use a scan tool to see what cylinder(s) are misfiring first so you don’t throw money at it

[@oldschoolrican]

@PhillipsVision Autozone's diagnostic test says cylinder # 2 & 4 needs or coil packs needs attention. I just saw those sparkplug fouled with oil.😬

[@RATCHETMAN1001]

wished you would have showed the graphing after repair. always before and after is showing a result, i tried them a couple times on a couple 06 and 07 vehs and light would still come on.the idea is to keep those o2s at a steady 600 to700 mv no switching when graphing they still switched but not as bad but enough to throw a code. could u show them after ur repair in graph mode would be nice.

[@aqrealestateking]

If the state really cared about emissions they would limit commercial air flights, commercial cow farms and greedy factory emissions these count for the majority of co2 otherwise thanks for the video

[@henryanderson7606]

You don't have two brain cells to rub together!!

[@carlbrooks90]

I find out these only work on older cars that are using conventional oxygen sensors and not afr sensors

[@iamredrunt172]

Also, Make shure the outside of the sensor is clean and oil free. The outer shell is an important in the operation of the sensor.

[@unrulysk7215]

Will these work for a p0430 code??

[@PhillipsVision]

@@unrulysk7215 it should since that pertains to the catalytic converter

[@markhuyette8509]

I like in PA next to your state been doing that for years thank you for your video and have a blessed day today 🙏

[@THESPICYMEATBALL93]

I put a catless downpipe on and now I have that issue . I just ordered an extender with precious metal inside to mimic a catalytic converter hope it works fingers crossed man I'm in york pa

[@Ffsdevgj]

Awesome man! Thanks! Hopefully this works on my Chev. Aveo.

[@AGee2217]

This did not work on my ‘03 Denali. 😔

[@BillKinsman]

The big fix I was looking for! I bought a Chinese catalytic converter and the oxygen sensor is a little bit too sensitive and the extension is just the thing to attenuate the signal getting to the computer

[@alcidescarrillo5035]

Didn't work for my 2010 caliber. Maybe the one with the filter (mini cat) would work.

[@uncletoby-]

I’ve got a 2010 Jeep Patriot which has the same engine set up as your Caliber. I’m going to try CataClean first and I have the extender with the filter (mini Cat). It was $11.00 and was shipped from China. I’ll let you know if it works.

[@Mr.Thermistor7228]

​@@uncletoby-cataclean is a bunch of snake oil horse shlt

[@MH_BeamNG]

@@uncletoby-did it work?

[@uncletoby-]

@@MH_BeamNG Unfortunately not. But I only ran one bottle. I’ll give it one more try and run 2 bottles. One right after the other as soon as I can afford it. I was able to buy an aftermarket manifold catalytic converter on eBay for $64.00 and will eventually try that too.

[@uncletoby-]

@@MH_BeamNGI haven’t tried the oxygen sensor extender yet.

[@ricomunoz2505]

Casually places sensors on Countach 😂😅😁

[@appolloscreed4316]

It’s nice having a half a million dollar work Bench 👍

[@glentreasure2466]

Yeah, I gotta take my car to the emissions today I got a ChevroletAVEO five years five years are longer fissions because it all P0 420 code. I just put one of them on my car now for the last three days. It’s been lights been off so today I got to go to the missions. I hope it passes.

[@jorgeAvaldez84]

did it pass?

[@Gary_in_NoVA]

Worked great on my 2004 BMW E46

[@CR8VE]

You only about a 1" to 2" stand off. Anything to tall you will get false readings your car will have other issues.

[@Mr.Thermistor7228]

No it will not. The downstream sensor has nothing to do with anything regarding how the engine is running.

[@c4rn199]

We had emissions in my county for a few years but now they just do safety inspections. Even for our safety inspections they do visual checks for the stock cat and if you have an aftermarket cat they go to the scan tool to make sure the sensor is reporting correctly. This is just for safety so they more strict on the emissions side. That o2 sensor extender is a dead giveaway that you're trying to bypass the system. When I had to do emissions they would print out a report on how efficient my cat was, they would actually stick a sensor in the exhaust and the state decided if it would pass or fail. That emissions readiness is a good tool to have in the torque app, most states allow you to have one of those systems not ready. Usually you can get the system to ready up with a short drive with your gas tank between 1/4 and 3/4. If you try it on a full tank most of the time it takes a lot longer or the evap doesn't ready up.

[@Eye-it-azz]

You can coat it with dirt to disguise it

[@Mr.Thermistor7228]

​@@Eye-it-azzoooooh nice tip

[@JdmSana]

Thank you for this video! Is it safe to keep driving my vehicle with the extender on the 02 Sensor? or do you recommend I take it off after I pass my State Inspection?

[@PhillipsVision]

@@JdmSana I leave mine on…no issues

[@JdmSana]

@@PhillipsVisionThanks. I had it on for about 2 weeks now and no issues. I was curious at moments if I should take it off. 😅

[@thomasrouh2258]

Well done.....Great video to help people understand

[@PhillipsVision]

Thanks for the comment

[@DaveSchmidt-z6v]

Does it affect i/m readiness will the 02 section complete thanks

[@PhillipsVision]

@@DaveSchmidt-z6v yes, the cycle will complete and test fine

[@uncletoby-]

I learned from this video that the extender needs to be on the down stream oxygen sensor not the upstream sensor. I’ve already bought a couple of different styles of spacer just in case. I spent between $5.00 and $8.00 each. I got them online from one of the last places you’d expect to find them.

[@danielfiore8865]

How'd it go? Make sure to take the spacers off before your test...they'll catch ya. Then they flag you for tampering

[@uncletoby-]

@@danielfiore8865 I haven’t had an opportunity to try one yet. But I will let you know when I do. I have tried Cataclean with disappointing results. I’m going to try it again though to see if the results last beyond 80 miles.

[@Mr.Thermistor7228]

​@@danielfiore8865 they won't flag you. What's the point of them flagging you? What are they gonna do if you have to many "flags" they gonna take your car? They have zero authority to do any of that. There is no such thing as flagging

[@danielfiore8865]

@@Mr.Thermistor7228 they report the results to the state and the exact word they use was "tampered". I love the skepticism my guy. Question everything. But I'm telling ya...it happened to me. The state of CA fines negligent shops $300K for passing modified cats. They send decoys into smog shops all the time. Welcome to reality. Or shrug it off

[@danielfiore8865]

@@Mr.Thermistor7228 they won't pass you. They'll mandate your inspection to state ref. If you want tags...youll get an inspection there next. You lack knowledge my friend.

[@robortkristensen3818]

The O2 sensors meassure how much O2 there is in the exhaust. The information from the upstream one(s) feed back to the ECU that regulates the Air Fuel mixture accordingly. The sensor downstream of the catalyst converter should read less O2 than the upsteam sensor and the extention gives the sensor less access to the O2 in the exhaust due to reduced pressure on the sensor when using the extention.

[@Mr.Thermistor7228]

Which is exactly why it works

[@RATCHETMAN1001]

you are correct but you have to try it on 08 up with a faulty convertor. the pcm is programed differently now. i have tried it numerous times and has not worked for me. your theory is correct and usually u see on graphing it stays around 700mv which is rich,it should never mimic up stream. but the pcm program i guess its smarter now.

[@thisthatwhatsup-mh3hq]

I have no codes but put a cheap catalytic vonverter on. It has a lean smell cause of the 02 port being cheap. Will this help my smell/lean or rich problem? Will it trick the computer to make it a hetter fuel air ratio? Thanks for any help

[@nebhosspin1252]

Great video and well explain. I have the same thing error code as p0430 on my Sienna. I bought one today. Is this to put inthe back of the cat converter to the backend of the uxhaust? Thks

[@PhillipsVision]

@@nebhosspin1252 installs onto downstream sensor, the one AFTER the catalytic converter

[@nebhosspin1252]

I​@@PhillipsVisionI got 2 sensors downstream. I assume to put in sensor #2?

[@PhillipsVision]

@@nebhosspin1252 yes, both downstream sensors

[@mookitty2396]

So remember, these won’t fix your cats. If your cats are clogged you will need to change them ( some cars have more than one) so keep an eye on your mpgs and how dark the exhaust comes out. Also smelly smog is a dead giveaway

[@enochpage1333]

Thanks for the tips!

[@theoacolo170]

I have p0410 and I changed the air pump but this code still pop up. What would I do ?

[@Terry9921]

Hi. There is no catalyst converter on my car. I am in the Caribbean so I am told it's quite fine. However the check engine light is on and there is a P0420 code when scanned. Will this work for my Nissan 2011 Tida? Thanks.

[@PhillipsVision]

If there is no catalytic converter on there, do you still have the O2 sensors? The downstream usually triggers that code.

[@Terry9921]

Phillip, thanks for responding. I am not sure if the o2 sensors are there. I would have to get someone to check. However, if they are not there what else could cause the P0420 code?

[@PhillipsVision]

@@Terry9921 it’s the downstream O2 sensor, the one after the catalytic converter. It’s telling your ECU that the catalytic converter is not working properly

[@Vickie-dr5ee]

Didn't work for me bought a walmart 1 that i didnt have to drill even had a mesh wire filter

[@rstumbaugh43]

Is there a part number for the short version, and where can I get it, what is the technical name?

[@PhillipsVision]

Walmart has them both online, just search Oxygen Sensor Extenders.

[@Mr.Thermistor7228]

Technically they are called spark plug defoulers

[@done.6191]

Casually laying parts on the Lamborghini…wow!

[@NoferTrunions]

what diagnostic reader did you use?

[@PhillipsVision]

Bluetooth Scanner and Torque Pro app

[@conradmaceo]

So I’m guessing since none of these videos say anything about it, this doesn’t affect how the car runs? I don’t care about codes or emissions, but my car now runs a little shitty since long tubes and cat delete! And yes it does need a dyno tune, just wondering if this would help for now!?

[@PhillipsVision]

@@conradmaceo This does not affect how it runs, but keep in mind if you have a bad O2 sensor you will need to replace that since that will cause performance issues

[@bayanicruz6319]

Do i need to put spacer after the exhaust or before the cat converter?thanks bro..

[@PhillipsVision]

After, it’s goes on the downstream sensor

[@babycali1920]

​@@PhillipsVision passenger side or driver downstream

[@PhillipsVision]

@@babycali1920 if you have two banks then on both, if you have one bank the. Just the one

[@jomishsebastian3620]

Is there any chance of any bite inside sensor and lead to oxygen sensor failure

[@Fred-Faizi]

Easy said then done. I just couldnt open the stuck sensor. Mine broke off the weld and then same happened with the other one😅

[@HellaMeiste]

did mine as a test to Audi TT for almost 2 weeks but it seems the downstream sensor(2) is also part of the important thing, I mean a fake reading is not good for both sensors, and lastly it will trigger the limit parameter and yes, the engine light will be ON , but Maybe it can help if you have issue with Catalytic but My Cat is great still !

[@Mr.Thermistor7228]

The downstream sensor has nothing to do with how the engine runs. It does not have any effects on air/fuel ratio or anything. All it is doing is detecting if the catalytic converter is making a change in the exhaust coming out of it. Nothing to do with any process of the running engine

[@HellaMeiste]

@@Mr.Thermistor7228 yup most it will say the same there is nothing to do than post cat check but i guess its not in my Audi, I was monitoring the value both and anothers for almost a week, running leaner lastly the light turned on again and again , Now i got a new sensor and the car is running better than before, Great !

[@RATCHETMAN1001]

@@Mr.Thermistor7228 they actually do more than cat efficiency. but if u watch them from cold start to warm and cruise before install and after install while graphing is the key to get a comparison. if they stay steady around 700 mv aprx .not switching is what the pcm is looking at. so he never showed that after what he done. Always numbers is data before and after repair.but try it on some 08 up and see what ur results are and see if the car never sets a code. thats a real test. i get what ur saying but the pcm is programed different now cany fool it as easy

[@babydracfrm60s]

8:59 9:08

[@andreaphillian3947]

@@HellaMeiste They are sensors, they have nothing to do with how the engine functions. They tell the engine how rich the fuel to air ratio is

[@Ready4smog]

Some vehicles will give a code for the rear oxygen sensor low circuit with this spacer.

[@SemperShock]

Does that what i5 means? I bought a 02 Silverado from a co worker & the cat was stolen so the owner straight piped it. With the OBD scanner it says low circuit. But i don’t believe it has a spacer on it.

[@x.livelife2509]

Where do I purchase?

[@PhillipsVision]

They are everywhere online. I got mine at Walmart.com

[@ak_777-d5k]

Where do you get one for a bolt on spacer?

[@antoniomarc7174]

I know about these and I know they sell them but I’m pretty sure these are illegal to use nationwide and the fines are pretty hefty for having them on your car so I would be careful with these in use, I’m not even sure how they didn’t catch this inspection stations are trained to look for these and any other illegal exhaust modifications. Look not trying to argue with you your explanation was great but any consumer or I’ve seen some shops do this should be aware that the fine is a big one for using these.

[@PhillipsVision]

Only a state inspection would look for these while they look underneath, emission inspections only check the ECU for codes.

[@petero7937]

No emissions laws in Africa so I am happy to use it

[@NoName-tz5ji]

I prefer the hollow out the cat method with the proper resistor in the wire out of sight.

[@Eye-it-azz]

@@petero7937 Africa is a continent. We have it in my country.

[@petero7937]

@@Eye-it-azz I live in South Africa but I have travelled in Africa so I mean the continent. I have not come across a country in Africa that requires annual emissions tests. What country are you from that has these annual emissions tests?

[@aldogaray1374]

What scanner program you have the let's you used your cell

[@PhillipsVision]

Torque Pro with a Bluetooth OBD2 adapter

[@franciskpanabum4939]

What if you don't have that extention?

[@FranciscoGonzalez-ou4jv]

Thanks you so much for the info . Do you know if this work for Ford fusion 2016 ? Do you didn't remove it , when you did the Smog check right ? , it pass the Smog with spark thing on rights?

[@PhillipsVision]

@@FranciscoGonzalez-ou4jv it should work on any vehicle with O2 sensors. You do not remove it, but keep in mind if you live in a state the does a physical check you will fail.

[@FranciscoGonzalez-ou4jv]

@PhillipsVision Thanks you so much , video is so helpful. I put the spacer on my fusion but light came on again with a new code which is P013A , I think im goin to need to replace that sensor .

[@PhillipsVision]

@@FranciscoGonzalez-ou4jv yeah, sounds like the sensor is failing

[@js002003]

Great informative vid. sorry if I missed it but where did you get the 02 spacer and what brand? thanks!

[@PhillipsVision]

I ordered it from Walmart online. There are links in the description of this video

[@js002003]

@@PhillipsVision ah got it. thank you! last question: any issue/problems installing these with a catted dp as opposed to catless? want to go with a high flow 200 cell sport cats to get most of the benefits of catless without the smell. but it will still prob end up throwing a CEL and was hoping to avoid that with an O2 spacer. thanks in advance!

[@PhillipsVision]

@@js002003 it should still work with the cat application you are doing

[@Mr.Thermistor7228]

I got mine on AliExpress for 3 dollars

[@stevecariggillio4139]

I love it, but check state and fed laws buddy. I'd hate to see you get in trouble for this

[@blablablabla4236]

The only time you’d get in trouble is if a pig checks underneath

[@dolfrobz8457]

Where do you buy these "extenders" ? Is it only for Ford vehicles? Where do I buy it?

[@PhillipsVision]

@@dolfrobz8457 I bought mine on Walmart.com, but there are many online sellers with them. They are for any make/model

[@dolfrobz8457]

@@PhillipsVision thank you so much, I appreciate it!

[@paullee8923]

I am Jamaica what's the name of the site I can get it

[@PhillipsVision]

@@paullee8923 Walmart.com

[@berenicegonzalez1697]

Where can i get one of those??

[@PhillipsVision]

@@berenicegonzalez1697 I bought mine on Walmart.com , you can also get them on Amazon and eBay

[@dirty313glove5]

Where’s the link for the 02 extender?

[@PhillipsVision]

@@dirty313glove5 It was in the description of the video but it looks like the link is gone. Walmart.com has them as well as Amazon

[@dirty313glove5]

@@PhillipsVisionthanks

[@theoacolo170]

What's the part ?

[@PhillipsVision]

@@theoacolo170 O2 Sensor extender. You can pick them up online at Walmart, eBay, Amazon etc

[@Ryan-yi6su]

Are these spacers one size fits all?

[@PhillipsVision]

Should be, just need to select the right length

[@done.6191]

Use anti-seize on the extender as well, yes?