o2 sensor heater circuit fault - Chevy S10 this applies to many makes and models 

This is the most complete( diagrams, explanations, testing)entertaining ( monster emoji, pinball in background, and continudity at5:57 video bar none I’ve seen on the tube. Thanks for ur due diligence and great start to the new year

Thank you Will for not taking shortcuts and using the stand R&R approach. This is professional grade troubleshooting and separates you from the weekend DIYer. Keep up the great work. It’s refreshing to see a reminder of how a job should be done.

Of of the easiest and most thorough vehicle repairs I've seen. Well done.

A thorough and complete repair leaving nothing to ponder. Always the professional. Thanks Will.

This is the best and most comprehensive video on testing and troubleshooting O2 sensors. It is a bit long but worth watching every second of it. Thank you!

Nice work. It was complete, thorough, and to the point, without millions of dollars worth of electronic testing equipment. EVEN I COULD UNDERSTAND IT!! Thank you.

This is by far one of the BEST auto repair videos I have ever experienced! Great job!!!!!!!!!

We appreciate auto technicians like you.

Your camera angles, lighting, and sound are sooooo much better. We can see and hear what you're doing. Keep up the good work sir. I can see you channel at 100k+ subs in a couple years. 😎

Certainly the repair you did was more professional than I would have done. It's also the kind of professional repair that withstands the criticism of a callback or second opinion that customers always hate. And, as you say, you don't know if that sensor is even good since it hasn't been working for a while (in fact at that point you wouldn't necessarily know the cat is working, either). I think I must be a farmer at heart. On an old beater truck with one bad segment of wire, I would have been inclined to do a farmer repair and fix the wire. I think it is justifiable to treat yourself differently than you would a customer, because your labor is 'free' and you don't worry so much about reputation and callbacks, etc (except what keyboard critics say on RU-vid). The last OEM O2 sensor I bought was $100, and the old one on your car seems to be good. If anybody looked underneath, they would roll their eyes at two extra connectors and a short stretch of wire, crimped or soldered and shrink wrapped, and tied with a quick tie with an extra loop to hold it out of the way and to allow easier future removal and repair. Removal in the future would be a little more time consuming, but on this truck if the exhaust is good you probably won't ever go back. For a downstream sensor that contributes very little to fuel mileage it would practically be just as good. Realistically, cars of this vintage don't tend to last more than a few years. With the extra money I saved I'd buy another tool, ha ha. Great video, Will, and I loved that home made tool.

i really got a lot out of this video. I was really impressed with being able to see the schematic beside the actual job. I wish more demos were done in this manner, it eliminates the guess work. I got a p0053 this afternoon , hopefully I will be able to isolate the cause. thanks for a great instructional video.

I sure do like the graphics that go along with the explanation Will. Nice tool! That modification makes total sense. Nice details showing us the pin that holds the terminal in place and the lack of a voltage drop.

I’m a subscriber going forward. I’ve replaced all three O2 sensors and keep getting a heater error. Thanks for this video as the problem you’ve identified is what I suspected, a bad connection. Btw, and for non-English speaking viewers, “crustys” while a highly accurate term is also referred to as corrosion. I noted the road salt coating on the undercarriage. Now if I only had a lift...

This helped me quite a bit. Thanks! I replaced all 3 - O2 sensors on my 00 Blazer and the still the not able to pass smog inspection today due to O2 sensor heater issue at same location you covered. I watched this and found there are traces of the dirt and “green crustiest” with pin in tact on my old sensor. Will inspect the harness in the morn & clean / repair as needed. Thanks again!

Again Another excellent presentation with trouble, diagnostics, and repair. I enjoy your vids each and every time. Thanks for posting

Thanks to you & this video I now know exactly where to go, how & what to test in order to properly diagnose & repair the P0401 B2, S2 fault code for my '04 5.7 Hemi Dodge, great video & audio quality as well.

thanks for another great video and going beyond the repair and explaining your process to conclusion. Great for us lay people who are not as experienced as you. Appreciate your sharing your knowledge.

Starting new year with sparking information O2 censor video which is very usefull and easy to follow. Well done Will

Great,thorough analysis and repair.Loved the homemade tool.

Great video. Saved me time with sensors. The bell in the background reminds me of Hector Salamanca.

Very thorough diagnostic work Will. Nice Job mate 👍

Nice video Will, I give it an A+ for content and editing. Thanks for taking the time to put these out.

Well done!! Explained in a simple and understanding manor

I have worked with Connectors of all types over the years in the Electronics Trade and I can say from my experience your Troubleshooting and especially the Repair of the Corroded Pin is 100% Thorough and Complete! Most DIY'rs would have Cut & Spliced on a New Connector. I NEVER like doing that if I can help it because it adds another layer of potential problems from Vibration Damage, Water Damage, Shorting, etc. ALL of your Steps should be followed IMHO. If one does not have access to Voltage, Ohms or Current Meter/s it's okay to skip those Steps. It'll Work or it Won't.

Seeing Mike from Monsters, Inc. representing the green crusties made me laugh out loud! Thanks for that.

And that's how it's done folks! Happy New Year Will... all the best to you & yours!

Will What a nifty o2 sensor tool you made. Great explanation for all us.

Great video Will! Thorough and as always, smoothly done. Bill

Excellent tutorial vid Will, showing ow to diagnose the issue the right way! You know my fav part was when the oldie but goodie test light pen made an appearance!! :-)

Another well done video, Will.

if this isnt the best repair video i have ever seen on you tube then its one of the best. thanks. subscriped and rang the bell

Glad to see you back you should enter this video in the cardone contest

Great video! That's some nasty looking salt corrosion you have there, glad I live in sunny California....lol!!

perfect job Will , Great fix man !

Great video keep up the good work thank you for your honesty

Awesome video as always, thanks and Happy New Year to you and family!

I like the swivel on the 7/8 socket !

That's awesome Thank you for your efforts and time

Another fantastic video mates where have you been we've missed you

At 5.00 it looks as if the pin has been pushed back in the connector housing; at 5.41 you can see the crimp end of the pin is sticking out of the back of the housing. Bearing in mind the heater circuit showed continuity, it might have been possible to re-seat the pin, clean up the female connector and have a "no parts required" repair.

Nice work, good energy level.

Good job Will !

Will, thank you very much for a detailed explanation. Can you by any chance provide the model number of the volt meter at the end where you used to measure the amps on the white wire. You just looped the clamp around that white wire. Thank you!

I enjoyed your informative videos from car basic repair to major repair. Can I request a video on how to flush out completely the radiator and water for 2011 Ford Fiesta. Many thanks.

Very good video!!

Thank you so much for the video and and something else to check! Good job on that tool make me one how much would you charge? I'm a little confused after you cleaned up the terminal you ended up trashing it and getting anther 02 sensor with new female terminal? Thanks! Dud are you around Albany NY I need you!

ok when I drive my 4.3 Sonoma it randomly stalls and restarts the o2 sensor fuse blows instantly when the keys turned forward no matter how many fuses I change . is the plug an issue or a melted wire on the o2 plug

Great video and info sir!! Sir what type of OBD2 tester were you using? Thanks

just replace my o2 sensor on my 2001 chevy s10 4.3 because of code p0135 now that i replaced the sensor and cleared code the light comes back on. for the same code would should i do next?

@robinsonAuto can you say how you wired up that 194 bulb(and what gauge wire) for that little test light?

This guy is a pro thx

Great video

What model of ac meter are you using for measuring the current drawn by the heater of the O2 sensor, the ones I have found in the market can measure AC current only.(timecode 21:36 on the video)?

great job nice video you should become a teacher great work

Great detail and zoom in camera work when needed

9:30 Put the 7/8ths box end on the socket 1st, then socket onto the sensor. Once its broken loose, take the socket and wrench off and use the open end wrench to finish taking it out. Just suggesting for those without customized tools.

Very good u make my day

Got a 99 s10 2.2. Have codes p0134 & p0141. Replace both 02 sensors, took the code out with my scanner. Code came back🤬. Recently I unplug the downstream 02 sensor and use my voltage tool & check all 4 pins. Only one pin made the light come on my tool. Haven't check the 1st one. Also I think I got 2 of the same 02 sensors. Their either both downstream or both upstream. I didn't know the difference back then.

Sweet custom socket adapter ! beers fer u!! thx

5:52 Continudity lol I’ll have to use that one

I have a problem like this I got a 2001 silverado 4.3l mine is bank 1 sensor 1 can the cat converter cause this I replace them twice already

Great teacher 👍🇺🇸👍

I have codes P0132, P0135 and P0141 on my Dodge Ram 2500. I know it’s an O2 sensor code for B1S1&2. I’ve already replaced S1 and still have code so figure a short. How do I fix a short?

Thanks this is what's wrong with mine

Im haveing a p0302 code on my s10 and a p0141 code think the p0141 could be cause my cyclinder 2 missfore iv replaced the cylinder 2 injector all plugs and wires and brand new ecm

Where at in PA are you, Will?

I need of of that cleaner.well done.

Off topic but wondering... Did replace my front/rear differentials before the snow hit. Had to replace then both because I couldn't find a GU6 rear axle, only GT4's. Old axle was growling. At first thought it was pinion bearing but turned out to be the axle shaft bearings. Would have just replaced bearings but the bearings were so bad they ate a groove into the axle shafts about 1/8" deep on passenger shaft and 1/4" on driver side. Before my speedometer was off by 5 MPH (reading fast) with stock tires.. Now my speedometer is off by even more and the faster I drive the more it's off. Talked to the previous owner and he said he replaced the transmission... Could the different trans with a different gear ratio be the reason the speedometer was off? If I got the speed sensor off of a truck/SUV with a GT4 axle would that fix the speedometer issue? I went to dealership and they told me they couldn't re-calibrate the the speed with the computer because it's a Canadian truck... That makes no sense to me because the Odometer has KPH and MPH.

My question is that I am getting 3 different codes on the heater sensor circuit ..I have a 99 jimmy that hesitates,runs a little rough gas millage stinks ..Now the only codes I got were 3 from the sensors..Here is what I got and hope someone can please help.. PO 135) o2 sensor heater circuit bank(1) sensor(1) Second is (PO155)o2 sensor heater circuit bank (2) sensor (1) and finally (PO 146) o2 sensor circuit NO ACTIVITY DETECTED BANK(1) SENSOR (3).now this is what I got off my scanner and it is a little confusing and wonder if all 3 needs replaced?or what..Hope to hear back from some one and these are great videos..

So bank 1 sensor 2 is upstream?

Thanks

will while you probable all ready know this oem makes shorter 02 scokets that would fit just right I have one

Great video Will

Ok question. Why not cut the harnesses, splice, solder the wires and when the time comes to replace an 02 sensor you just cut it out? Isn't it the same concept with a car radio, speaker. If the deck or speakers fail. You rip em out. Seems overly complicated. Maybe I need to go to electrical engineering school idk.

you might be able to sell that tool idea to snap on!

"Conti-nudity" 😆 5:52

Is it 3 or 4 sensors

Tired of this issue with my 1998 GMC Sierra K1500 pickup 5.7L. From the looks of it whoever replaced the cat added a 2' pipe after the crossover, instead of just installing the cat. The result is there is nearly 5' of pipe between the engine and the cat. By the time the gasses get to the cat to properly chemically change the gasses. As a result the Oxy sensors after the cat are essentially reading the same exhaust as the exhaust manifold Oxy sensors. The result, crappy gas milage and not as much power as there should be.... and the Oxy sensors are black as tar within a week. I love it when they pull the light bulb on the dash cluster cus they think it'll pass emissions... I got around emissions last autumn by clearing the CEL and driving directly to the shop. With a 1998 car/truck in NY you can get away with 3 incomplete sensors.

What about the o2 side

Same issue except I have no terminal on the vehicle side:(

What is that clanging in the background ?

Heater o2 same on my s10 problem

Jesus, 3 o2 sensors on the same pipe? I'm going to fix my 76 Nova. New cars are crap.

This could be the reason why I can't clear my oxygen sensor monitor.🙆‍♂️

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There's your problem lady!!!

#ياسر_النيري_اعجب_منشورك

LMAO "MIA" No Longer..... There.....

☆☆☆☆☆ perfect.

First ya dancer...

no torch and glowing red bung! unsubbed :))